DEEP SOIL MIXING SHORING SYSTEM TO CONSTRUCT A 60 MGD, 40 FOOT DEEP WASTEWATER PUMPING STATION

Size: px
Start display at page:

Download "DEEP SOIL MIXING SHORING SYSTEM TO CONSTRUCT A 60 MGD, 40 FOOT DEEP WASTEWATER PUMPING STATION"

Transcription

1 DEEP SOIL MIXING SHORING SYSTEM TO CONSTRUCT A 60 MGD, 40 FOOT DEEP WASTEWATER PUMPING STATION BY DARLA REAMS 1, JEFFREY B. GLOVER 2 AND DAVID J. REARDON 3 HDR ENGINEERING 5175 HILLSDALE CIRCLE EL DORADO HILLS, CA (916) Senior Engineer, City of San Mateo, CA 2 Project Manager, HDR Engineering, El Dorado Hills, CA 3 Project Manager, HDR Engineering, El Dorado Hills, CA

2 The City of San Mateo, CA operates three wastewater pumping stations on a 80 wide lot located in a residential area near San Francisco Bay. The age of the stations range from 12 to 50 years. the stations have difficulty pumping peak wet weather flows, and have structural and maintenance problems. For these reasons, a new station was proposed to replace the existing stations. The site layout is shown in Figure 1. Flows through the existing stations are highly variable, averaging 10 MGD dry weather and approximately 50 MGD peak wet weather. At night flows drop to as low as 1 MGD. the new station was designed to pump peak flows of 60 MGD. The new Dale Avenue Pumping Station that replaces the three exiting stations was originally conceived as a circular caisson type. However, a geotechnical investigation by Kaldveer Associates, Oakland CA, recommended against a caisson type structure because the stiff soils could cause difficulties in sinking caisson structure. This prompted an investigation of possible shoring methods for the proposed structure. This paper describes the shoring methods investigated, and the selection and fundamentals of the deep soil mixing (DSM) shoring system as well as construction considerations. SHORING OPTIONS The desired shoring system for the station was deemed to have the following characteristics: Low vibration levels during installation Suitable for soils with cobbles and gravel No tiebacks under existing homes Low permeability Minimum effect on adjacent groundwater levels Systems investigated included steel sheeting, soldier beams and lagging, tieback systems, caisson structures, open excavation and others. However, each had disadvantages that prevented their use for this Project. Steel sheeting necessitated driving the steel members through stiff clays and cobble gravels, a technique that could have caused settlement and structural damage to adjacent homes due to vibration during driving. Drilled soldier beams are lagging would have produced dewatering problems. Tieback systems would have required drilling the adjacent homes, which was undesirable. A caisson type structure would have eliminated a shoring system. However, as previously stated, it was rejected as too risky. because theses conventional techniques were unacceptable, attention was turned to deep soil mixing to serve as a diaphragm wall during construction of the pumping station. The anticipated advantages were impermeability, fast and efficient installation, adaptability to subsurface conditions ranging from soft ground to stiff clay to gravels and a lack of pile driving requirements. To the author s knowledge, this is the first application of

3

4 the DSM method for use as a diaphragm wall in the United States. The DSM diaphragm wall technique has been used extensively in Japan since A description of the DSM system follows: DESCRIPTION OF DSM SYSTEM The DSM system uses a crane supported set of leads that guide up to four 36- inch diameter auger/mixing shafts. As the shafts advance vertically into the soil, a cement/bentonite grout is injected through the stems of the mixing shafts and discharged at the head. By combining auger flights and mixing blades along the shafts, soil is lifted and blended with the grout in pugmill fashion. When the design depth is reached, the mixing shaft rotation is reversed and the mixing process continues as the shafts are brought to the surface, leaving a thoroughly mixed column of soil, cement and bentonite. Continuity is achieved in two ways, first auger flights and mixing blades overlap with adjacent shafts. Secondly, the DSM machine penetrates with a multiple set of shafts that overlap one of the previously drilled columns, while simultaneously creating three new columns with the other shafts. Construction of the DSM installation at the Dale Avenue Pumping Station is shown in Figure 2 (Parts 1-4). Figure 3 shows the proximity of the pumping station to nearby homes and the DSM assembly in action. the bottom of the auger assembly and guide trench and the cement batch plant are shown in Figure 4. Because the resulting soil columns cannot provide unbraced support for deep excavations, a structural system must be provided. Immediately after mixing is completed, H-beams are dropped and vibrated into the columns. during curing and subsequent excavation, the wall material is chipped away to expose the H- beams bear directly on the walers. The walers are designed as structural members braced in the interior of the excavation, or they can be restrained by a tieback system that extends outside the excavation. Figure 5 shows the completed DSM wall. DSM SYSTEM FOR THE DALE AVENUE PUMPING STATION The Dale Avenue Pumping Station has a depth of 40 feet. The DSM wall was designed to penetrate 10 feet lower than the bottom of the structure as shown in Figure 6. After the placement of the H- beams in the DSM column, the structure was excavated and two sets of internal support walers were placed to support the excavation. See Figure 2 (Parts 5 and 6). A design summary of the pumping station and diaphragm wall is presented in Table 1. As the structure was constructed, the walers were used as convenient walkways and staging platforms. Construction of the 2 foot thick concrete walls was accomplished by pouring directly against the diaphragm wall; thus no exterior forms were used. Interior wall forms were supported by ties welded directly to

5

6 DSM Assembly in Action Location to Nearby Homes Figure 3

7 the vertical H-beams. As the wall construction proceeded upwards, the lower waler was removed and the 4 foot thick concrete floor of the pumping station served as the internal bracing system. After the mezzanine floor of the station had achieved strength, it served as the upper bracing system for the walls, and the upper walers were then removed. No waterproofing or damp proofing was applied to the exterior walls of the station below the groundwater level. TABLE 1. DESIGN SUMMARY OF DALE AVENUE PUMPING STATION STRUCTURE AND DIAPHRAGM WALL SIZE, CAPACITY OR COMPONENT DESCRIPTION Pumping Station Lot Width 80 ft. Station Dimensions (outside) LxWxD Type of Shoring System 76 ft x 49 ft x 40 ft DSM diaphragm wall Diaphragm Wall Number of shafts for DSM equipment 4 Effective width of diaphragm wall Auger diameter Depth of wall 24 in 36 in 50 ft Spacing of vertical H-beams 4 Size of H-beams Specified permeability of finished soil/cement column Strength of soil/cement column W24x76 5x10 6 cm/sec Approx. 100 psi Bracing system Upper Walers Lower Waler Groundwater Elevation W27x84 through W36x135 W36x135 through W36x ft above bottom of structure

8 DSM Assembly Bottom and Guide Trench Grout Batch Plant Figure 4

9 Figure 5 Excavation Showing Vertical H-Beams and Internal Bracing

10

11 DSM SYSTEM FOR THE DALE AVENUE PUMPING STATION The DSM diaphragm wall was intended to provide an impervious barrier to the groundwater that existed outside the station. It was anticipated that the wall would virtually eliminate dewatering during the construction and preclude wall seepage after the station was constructed. Unfortunately, the DSM wall did not act as a perfect barrier; small leaks occurred at two locations during construction. These leaks (approximately 10 gpm) provided more a nuisance than a severe construction problem. Water was contained at the leaks and discharged from the excavation with small submersible pumps. the DSM wall was effective enough to prevent any significant water from entering the excavation during the construction process. Because the groundwater surface was over 25 feet above the bottom of the excavation, some leaks appeared on the walls of the dry well of the station. Most leaks occurred at locations where form ties penetrated the wall and were welded to the vertical H-beam. These leaks were stopped by epoxy grouting. Installation of the vertical H-beams into the mixed soil columns was accomplished by lifting the H-beams into place and allowing them to sink into the liquid mixture of soil, cement and water. Where resistance was encountered, the H-beams were vibrated into place. However, not all H-beams cooperated; some could not be sunk completely. Where difficulties were encountered, the H-beams were cut off at ground level and the bottom of the H-beam was cross welded to adjacent H-beams after excavation was complete. The cost of the deep soil mixing system, which consisted of the drilling and mixing of the diaphragm wall was approximately $350,000 for approximately 10,000 square feet. It was provided by a subcontractor. The $350,000 figure includes approximately $100,000 for mobilization/demobilization, $50,000 for installation of H-beams, and $200,000 for construction off the DSM wall. The general contractor purchased the H-beams, and provided and installed walers and all internal bracing. The cost of these items was approximately$198,000. A summary of costs for the DSM wall system is shown in Table 2. The total cost of this system $548,000 or approximately $55/sf. The construction of the Dale Avenue Pumping Station, San Mateo, CA, was begun in June 1989 on a narrow lot in a residential neighborhood. To prevent potential damage to adjacent homes, driving of soldier beams and sheet piling were eliminated as shoring options. Tieback systems were also undesirable because they would penetrate below homes adjacent to the station. The need for a system with relatively low vibration and the ability to retain the high groundwater led to the use of the deep soil mixing system as an internally braced shoring system. The installation was rapid and allowed the placement of a complete diaphragm wall before excavation commenced. An added bonus of the

12 system was that the DM wall served as the back form to pour the cast-in-place concrete walls for the pumping station. Parties involved in the project included: Owner Designer Geotechnical Engineers General Contractor DSM Wall Subcontractor City of San Mateo, CA HDR Engineering, Inc., El Dorado Hills, CA Kaldveer Associates, Oakland, CA Dan Caputo, San Jose, CA Geo-Con Inc., Pittsburgh

13 TABLE 2. SUMMARY OF DSM SYSTEM COSTS AT DALE AVENUE PUMPING STATION COMPONENT COST DSM WALL (Subcontractor) Mobilization $100,000 Construct DSM Wall 200,000 Place Vertical H-beams, Miscellaneous 50,000 Subtotal $350,000 Internal Bracing, Miscellaneous (General Contractor) Purchase Vertical H-beams 65,000 Internal Bracing Purchase Steel 55,000 Fabricate 25,000 Install/Remove 30,000 Structural Design 10,000 Assistance with DSM Wall Construction 5,000 Haul Spoils from DSM Wall Construction 8,000 Subtotal $198,000 Total $548,000

CHOICE OF METHODS AND EQUIPMENT FOR EARTH RETENTION SYSTEMS

CHOICE OF METHODS AND EQUIPMENT FOR EARTH RETENTION SYSTEMS CHOICE OF METHODS AND EQUIPMENT FOR EARTH RETENTION SYSTEMS By Dawn C. Tattle, P. Eng. Anchor Shoring & Caissons Ltd., Toronto 1 INTRODUCTION This paper provides information regarding selection, installation

More information

E a r t h R e t e n t i o n S y s t e m s a n d S p e c i a l i z e d F o u n d a t i o n s

E a r t h R e t e n t i o n S y s t e m s a n d S p e c i a l i z e d F o u n d a t i o n s E a r t h R e t e n t i o n S y s t e m s a n d S p e c i a l i z e d F o u n d a t i o n s Equipment & Process Since 1959, Schnabel Foundation Company has been the leader in the development of earth retaining

More information

PORT OF OAKLAND PROJECTS

PORT OF OAKLAND PROJECTS Raito provides the geometric and material design for all DSM (Deep Soil Mixing) projects. The geometric design includes the layout design of soil-cement elements or panels to meet the intent of the geotechnical

More information

Factors that Determine Wall Type Selection. Proximity to existing structures / roadways. Service Life: temporary / permanent

Factors that Determine Wall Type Selection. Proximity to existing structures / roadways. Service Life: temporary / permanent EXCAVATION SUPPORT CONSTRUCTION IN URBAN ENVIRONENTS: CHALLENGES and SOLUTIONS Presented to: DELAWARE VALLE ASSOCIATION OF STRUCTURAL ENGINEERS Domenic D Argenzio, PE, Senior Associate ueser Rutledge Consulting

More information

Fayoum University. Faculty of Engineering Department of Civil Engineering. Retaining Structures. Lecture No. (14): Cantilever Sheet Pile Walls

Fayoum University. Faculty of Engineering Department of Civil Engineering. Retaining Structures. Lecture No. (14): Cantilever Sheet Pile Walls Fayoum University Faculty of Engineering Department of Civil Engineering CE 40: Part C Retaining Structures Lecture No. (14): Cantilever Sheet Pile Walls Dr.: Youssef Gomaa Youssef CE 406: Foundation Design

More information

DIAPHRAGM WALLS, CUT-OFF WALLS AND SLURRY WALLS

DIAPHRAGM WALLS, CUT-OFF WALLS AND SLURRY WALLS DIAPHRAGM WALLS, CUT-OFF WALLS AND SLURRY WALLS Bilfinger Spezialtiefbau GmbH Goldsteinstrasse 114 D-60528 Frankfurt Phone: +49 69 6688-345 Fax: +49 69 6688-277 Email: info.spezialtiefbau@bilfinger.com

More information

Claims Regarding the Impact of Dewatering and Other Underground Work at Transbay Transit Center Construction Site Are Not Accurate

Claims Regarding the Impact of Dewatering and Other Underground Work at Transbay Transit Center Construction Site Are Not Accurate For Immediate Release Media Contact: Scott Boule Office: 415-597-4620 sboule@transbaycenter.org Claims Regarding the Impact of Dewatering and Other Underground Work at Transbay Transit Center Construction

More information

Soil and Building Support/Stresses

Soil and Building Support/Stresses Foundations Soil and Building Support/Stresses Bearing : Settlement : Uniform or Differential Shear: Sloped Conditions Non-Uniform Bearing Earth Movement Overturning Shifting Ground Hydrostatic Pressure

More information

DESIGN AND CONSTRUCTION OF A DEEP SOIL MIX RETAINING WALL FOR THE LAKE PARKWAY FREEWAY EXTENSION

DESIGN AND CONSTRUCTION OF A DEEP SOIL MIX RETAINING WALL FOR THE LAKE PARKWAY FREEWAY EXTENSION DESIGN AND CONSTRUCTION OF A DEEP SOIL MIX RETAINING WALL FOR THE LAKE PARKWAY FREEWAY EXTENSION By E. W. BAHNER 1 Member, ASCE, A.M. NAGUIB 2 ABSTRACT: The extension of a new freeway in an urban area

More information

Auger Grouted Steel Core Displacement Piles. A vast and growing network.

Auger Grouted Steel Core Displacement Piles. A vast and growing network. A vast and growing network. IDEAL is a C.S. Stroyer & Sons company. Est. 1956 and began manufacturing in 2004. Headquarters in Greater Rochester, NY 15 acres 13,500 Sq Ft Corporate office and Training

More information

A. Section Includes: Fundex Tubex Grout Injection Piles (TGI Piles)

A. Section Includes: Fundex Tubex Grout Injection Piles (TGI Piles) PART I - GENERAL 1.01 SUMMARY A. Section Includes: Fundex Tubex Grout Injection Piles (TGI Piles) B. Related Sections: Reinforcing: Section 03200 Welding: Section 05500 Cast in Place Concrete: Section

More information

GEOTECHNICAL ENGINEERING SERVICES REPORT

GEOTECHNICAL ENGINEERING SERVICES REPORT GEOTECHNICAL ENGINEERING SERVICES REPORT For the PROPOSED PUMP STATION NORTHEAST CORNER (NEC) OF MELROSE AVENUE AND OCCIDENT STREET TAMPA, FLORIDA Prepared for City of Tampa - Wastewater Department 306

More information

SECTION 02401 SHEETING, SHORING AND BRACING

SECTION 02401 SHEETING, SHORING AND BRACING SECTION 02401 SHEETING, SHORING AND BRACING This section should be edited to reflect soil conditions specific to the project site and the recommendations of a Geotechnical Engineer licensed in the State

More information

INSTALLATION OF DRILLED PIERS

INSTALLATION OF DRILLED PIERS INSTALLATION OF DRILLED PIERS By Dawn C. Tattle, Anchor Shoring & Caissons Ltd., Toronto 1 INTRODUCTION A drilled pier is commonly referred to as a caisson or drilled shaft. Shafts typically range in diameter

More information

DRILLED SHAFTS. Section 465 of Standard Specifications

DRILLED SHAFTS. Section 465 of Standard Specifications DRILLED SHAFTS Section 465 of Standard Specifications What is a Drilled Shaft? Type of substructure foundation. A cylindrical shaft excavated into the ground and then filled with resteel & concrete. Supports

More information

How to Estimate the Cost of Support of Excavation for Foundation Installation. CPE Candidate No. 0113013. May 15, 2013

How to Estimate the Cost of Support of Excavation for Foundation Installation. CPE Candidate No. 0113013. May 15, 2013 How to Estimate the Cost of Support of Excavation for Foundation Installation CPE Candidate No. 0113013 May 15, 2013 1 How to Estimate the Cost of Support of Excavation for Foundation Installation Table

More information

TECHNICAL SPECIFICATIONS CEMENT-BENTONITE SLURRY TRENCH CUTOFF WALL

TECHNICAL SPECIFICATIONS CEMENT-BENTONITE SLURRY TRENCH CUTOFF WALL TECHNICAL SPECIFICATIONS CEMENT-BENTONITE SLURRY TRENCH CUTOFF WALL SCOPE This section of the specifications includes requirements for the Slurry Trench Cutoff Wall and related work as indicated on the

More information

Up-Down Construction Utilizing Steel Sheet Piles and Drilled Shaft Foundations

Up-Down Construction Utilizing Steel Sheet Piles and Drilled Shaft Foundations Up-Down Construction Utilizing Steel Sheet Piles and Drilled Shaft Foundations Nathan A. Ingraffea, P.E., S.E. Associate, KPFF Consulting Engineers, Portland, Oregon, USA Abstract The use of steel sheet

More information

INTERNATIONAL PILING CONTRACTORS

INTERNATIONAL PILING CONTRACTORS Introduction SAUDI FOUNDATIONS & CONCRETE PROCESSING Co. LTD (Saudi Foundations) has been created to provide complete Ground Contracting Solutions and Geotechnical Contracting Services to the construction

More information

California Department of Transportation Doyle Drive Test Program Contract No. 04A3362

California Department of Transportation Doyle Drive Test Program Contract No. 04A3362 California Department of Transportation Doyle Drive Test Program Deep Soil Mixing (DSM) /Cutter Soil Mixing (CSM) Testing Report By Malcolm Drilling Company, Inc. 3524 Breakwater Ave., Suite 108 Hayward,

More information

SPECIFICATIONS FOR SUBSURFACE EROSION STABILIZATION BY COMPACTION GROUTING SEPTA Frankford Transportation Building Philadelphia, PA PART 1 GENERAL 1.01 INTENT The intent of the compaction grouting specified

More information

ARCHITECTURAL TECHNOLGY 4 ADVANCED CONSTRUCTION TECHNOLOGY BASEMENT CONSTRUCTION YEAR 3 SEMESTER 1 AIDAN WALSH R00060057. Lecturer: Jim Cahill

ARCHITECTURAL TECHNOLGY 4 ADVANCED CONSTRUCTION TECHNOLOGY BASEMENT CONSTRUCTION YEAR 3 SEMESTER 1 AIDAN WALSH R00060057. Lecturer: Jim Cahill ARCHITECTURAL TECHNOLGY 4 ADVANCED CONSTRUCTION TECHNOLOGY BASEMENT CONSTRUCTION YEAR 3 SEMESTER 1 AIDAN WALSH R00060057 Lecturer: Jim Cahill 29 th November 2011 TABLE OF CONTENTS SUMMARY 1 MAIN BODY SECTION

More information

SECTION XXXXX STONE COLUMNS PART 1 - GENERAL

SECTION XXXXX STONE COLUMNS PART 1 - GENERAL SECTION XXXXX STONE COLUMNS PART 1 - GENERAL 1.1 RELATED DOCUMENTS: Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 00 and Division 01

More information

STRUCTURES. 1.1. Excavation and backfill for structures should conform to the topic EXCAVATION AND BACKFILL.

STRUCTURES. 1.1. Excavation and backfill for structures should conform to the topic EXCAVATION AND BACKFILL. STRUCTURES 1. General. Critical structures may impact the integrity of a flood control project in several manners such as the excavation for construction of the structure, the type of foundation, backfill

More information

SECTION 4 EXCAVATION, TRENCHING AND BACKFILLING 4.01 SCOPE OF WORK

SECTION 4 EXCAVATION, TRENCHING AND BACKFILLING 4.01 SCOPE OF WORK 4.01 SCOPE OF WORK The work covered by this section shall consist of furnishing all materials, equipment and labor for the excavating, trenching, backfilling, and bore and jack required to install or repair

More information

Cofferdam Design and Construction Overview MDOT Perspective

Cofferdam Design and Construction Overview MDOT Perspective Cofferdam Design and Construction Overview MDOT Perspective By Anthony Pietrangelo, P.E. MDOT Geotechnical Construction Support Engineer March 17 th, 2015 Presentation Overview Cofferdam Overview MDOT

More information

A Case Study for Waterproofing Below Grade Walls Shored with Continuous Soil Mix Technology Using a Bentonite Waterproofing System

A Case Study for Waterproofing Below Grade Walls Shored with Continuous Soil Mix Technology Using a Bentonite Waterproofing System A Case Study for Waterproofing Below Grade Walls Shored with Continuous Soil Mix Technology Using a Bentonite Waterproofing System Amanda Prot Rodney Lock Stéphane Hoffman Outline Project Requirements

More information

JET GROUTING Bilfinger Spezialtiefbau GmbH

JET GROUTING Bilfinger Spezialtiefbau GmbH JET GROUTING Bilfinger Spezialtiefbau GmbH Goldsteinstrasse 114 D-60528 Frankfurt Phone: +49 69 6688-345 Fax: +49 69 6688-277 Email: info.spezialtiefbau@bilfinger.com www.foundation-engineering.bilfinger.com

More information

Residential Statement of Special Inspections**

Residential Statement of Special Inspections** Residential Statement of Special Inspections** CNI-033R Name of Owner Address Permit Number Job Description This Statement of Special Inspections is submitted to outline the requirements of 2013 CBC Chapter

More information

Building the Foundations of Australia

Building the Foundations of Australia Building the Foundations of Australia CFA piling for rail line at coal export terminal, NSW Piling Contractors are proud of our reputation as one of Australia s premier specialist engineering companies.

More information

Voice of America Mall Target Project: A Steel Push Pier Underpinning Case Study

Voice of America Mall Target Project: A Steel Push Pier Underpinning Case Study Voice of America Mall Target Project: A Steel Push Pier Underpinning Case Study by Howard Perko, Bill Bonekemper, Dave Jacob and Brian Dwyer Magnum Piering, Inc., West Chester, Ohio March 18, 2003 Abstract

More information

Use of a Reinforced Jet Grout Excavation Support System for a Major Sewer Line Repair

Use of a Reinforced Jet Grout Excavation Support System for a Major Sewer Line Repair Use of a Reinforced Jet Grout Excavation Support System for a Major Sewer Line Repair Eric M. Klein, P. E., Rummel, Klepper & Kahl, LLP, Baltimore, Maryland Kenneth B. Andromalos, P. E., Brayman Environmental,

More information

SECANT PILE SHORING DEVELOPMENTS IN DESIGN AND CONSTRUCTION

SECANT PILE SHORING DEVELOPMENTS IN DESIGN AND CONSTRUCTION SECANT PILE SHORING DEVELOPMENTS IN DESIGN AND CONSTRUCTION Eric S. Lindquist, Berti-Lindquist Consulting Engineers, Inc., 920 Country Club Drive, Suite 2A, Moraga, California, USA Rob Jameson, Malcolm

More information

SPECIFICATIONS FOR STRUCTURAL EXCAVATION

SPECIFICATIONS FOR STRUCTURAL EXCAVATION SPECIFICATIONS FOR STRUCTURAL EXCAVATION 1.0 DESCRIPTION The Work shall consist of:.1 Removing material for the placement of foundations, substructure units, approach slabs, transition slabs and culverts,

More information

Communication Tower Foundation Selection Criteria

Communication Tower Foundation Selection Criteria Communication Tower Foundation Selection Criteria Introduction This foundation selection criteria document has been prepared by the Engineering Specialties Group as a resource for public and private entities,

More information

Soil and Rock Parameters for Estimating Deflections of Soldier Pile and Lagging Walls

Soil and Rock Parameters for Estimating Deflections of Soldier Pile and Lagging Walls Soil and Rock Parameters for Estimating Deflections of Soldier Pile and Lagging Walls Todd W. Swackhamer, P.E. 1, Michael J. Mann, P.E. 2, and Donald R. McMahon, P.E. 2 Abstract This paper presents four

More information

BUTE Department of Construction Management and Technology

BUTE Department of Construction Management and Technology BUTE Department of Construction Management and Technology 02.10.2012 Definition 1: Foundation: The structure, that transmits the load of the building to the soil Definition 2: Load bearing soil (strata):

More information

SECTION 1 GENERAL REQUIREMENTS

SECTION 1 GENERAL REQUIREMENTS Page 1 of 6 SECTION 1 GENERAL REQUIREMENTS 1. SCOPE OF WORK: The work to be performed under the provisions of these documents and the contract based thereon includes furnishing all labor, equipment, materials,

More information

Designed and Engineered to Perform

Designed and Engineered to Perform History EARTH CONTACT PRODUCTS, L.L.C., is a family owned company, based in Olathe, Kansas. This company was built upon Don May s U.S. Patented fourth-generation Steel Piering System that has led to the

More information

York County Building Plan Format Requirements

York County Building Plan Format Requirements York County Building Plan Format Requirements MINIMUM RECOMMENDED STANDARDS FOR BUILDING PLANS: The type and number of drawings will depend greatly upon the size, nature and complexity of the project.

More information

ECO-PILING METHODS. Ong Tiong Siew Group CEO Ryobi Kiso Holdings. Visit our website. 1/63

ECO-PILING METHODS. Ong Tiong Siew Group CEO Ryobi Kiso Holdings. Visit our website.  1/63 ECO-PILING METHODS Ong Tiong Siew Group CEO Ryobi Kiso Holdings Visit our website. http://www.ryobi-kiso.com/ 1/63 Scope Introduction Overview Deep Cement Mix (DCM) / Grout Mix Piling (GMP) Trench Cutting

More information

DEEP SOIL MIXED WALL AND JET GROUTING FOR AN EXCAVATION SUPPORT SYSTEM AT THE MUSEUM OF FINE ARTS IN BOSTON, MASSACHUSETTS

DEEP SOIL MIXED WALL AND JET GROUTING FOR AN EXCAVATION SUPPORT SYSTEM AT THE MUSEUM OF FINE ARTS IN BOSTON, MASSACHUSETTS DEEP SOIL MIXED WALL AND JET GROUTING FOR AN EXCAVATION SUPPORT SYSTEM AT THE MUSEUM OF FINE ARTS IN BOSTON, MASSACHUSETTS Harry Schnabel, P.E., Director of Business Development, Schnabel Foundation Co,

More information

Cutter Soil Mixing Excavation and Shoring in Seattle s Pioneer Square District

Cutter Soil Mixing Excavation and Shoring in Seattle s Pioneer Square District Cutter Soil Mixing Excavation and Shoring in Seattle s Pioneer Square District Doug Lindquist 1, Ben Upsall 1, and Garry Horvitz 1 1 Hart Crowser, 1700 Westlake Avenue North, Suite 200, Seattle, WA 98109;

More information

San Antonio Water System Standard Specifications for Construction ITEM NO. 852 SANITARY SEWER MANHOLES

San Antonio Water System Standard Specifications for Construction ITEM NO. 852 SANITARY SEWER MANHOLES San Antonio Water System Standard Specifications for Construction ITEM NO. 852 SANITARY SEWER MANHOLES 852.1 DESCRIPTION: This item shall govern the construction of standard sanitary sewer manholes complete

More information

ENGINEERED FOUNDATIONS. Department of Public Works Jeff Hill, PE

ENGINEERED FOUNDATIONS. Department of Public Works Jeff Hill, PE ENGINEERED FOUNDATIONS Department of Public Works Jeff Hill, PE What is an engineered foundation. A Foundation Design Developed by a Trained Professional (Engineer) Types of Foundations (All of which can

More information

SOLDIER PILE SYSTEMS

SOLDIER PILE SYSTEMS SOLDIER PILE SYSTEMS SOLDIER PILE SYSTEMS SOLDIER PILES Soldier piles of varying materials and sections are used, often in conjunction with some form of lagging to support soils as a continuous wall above

More information

Current Version: September 26, 2012 Previous Versions: 02/24/10, 03/26/08, 03/09/04, 02/17/00 and 05/16/97 Item No. 509S Excavation Safety Systems

Current Version: September 26, 2012 Previous Versions: 02/24/10, 03/26/08, 03/09/04, 02/17/00 and 05/16/97 Item No. 509S Excavation Safety Systems Item No. 509S Excavation Safety Systems 509S.1 Description This item shall govern the designing, furnishing, installing, maintaining and removing or abandoning of temporary Excavation Safety Systems consisting

More information

SECTION 7 EXCAVATION AND BACKFILL FOR PIPELINES 7.1 GENERAL

SECTION 7 EXCAVATION AND BACKFILL FOR PIPELINES 7.1 GENERAL SECTION 7 EXCAVATION AND BACKFILL FOR PIPELINES 7.1 GENERAL The work covered by this specification consists of furnishing all labor, tools, materials, equipment, and performance of all operations in connection

More information

The minimum reinforcement for the stem wall is the placement of:

The minimum reinforcement for the stem wall is the placement of: PolySteel creates an ideal insulated stem wall for concrete slabs that can make this part of your project easier and faster, in addition to making your finished project more energy-efficient. Figures 3.20

More information

Design and Construction of a 200-foot-deep, 24-foot-diameter Conveyance System Access Shaft

Design and Construction of a 200-foot-deep, 24-foot-diameter Conveyance System Access Shaft Boise, Idaho September 14, 2009 Design and Construction of a 200-foot-deep, 24-foot-diameter Conveyance System Access Shaft Placeholder for photo Daniel R. Williams, P.E. Project Overview 2 Project Location

More information

EXCAVATION AND BACKFILL

EXCAVATION AND BACKFILL EXCAVATION AND BACKFILL 1. General. Excavation and backfill in the critical area of a flood control project could have a direct impact on the stability of the flood control project. Improper excavation

More information

Micropiles Reduce Costs and Schedule for Merchant RR Bridge Rehabilitation

Micropiles Reduce Costs and Schedule for Merchant RR Bridge Rehabilitation Micropiles Reduce Costs and Schedule for Merchant RR Bridge Rehabilitation Jeff R. Hill, P.E. Hayward Baker Inc. 111 W. Port Plaza Drive Suite 600 St. Louis, MO 63146 314-542-3040 JRHill@HaywardBaker.com

More information

ITEM NO. 852 SANITARY SEWER MANHOLES

ITEM NO. 852 SANITARY SEWER MANHOLES ITEM NO. 852 SANITARY SEWER MANHOLES 852.1 DESCRIPTION: This item shall govern the construction of standard sanitary sewer manholes complete in place and the materials therein, including manhole rings

More information

TRENCHLESS TECHNOLOGY IN PIPELINE CONSTRUCTION

TRENCHLESS TECHNOLOGY IN PIPELINE CONSTRUCTION TRENCHLESS TECHNOLOGY IN PIPELINE CONSTRUCTION 2009 AMERICAN WATERWORKS ASSOCIATION PACIFIC NORTHWEST SPRING CONFERENCE Salem, Oregon May 6, 2009 Presented by: Ed Heavey, P.E. Trenchless Construction Methods

More information

alls. sheet piling. readily available. stee

alls. sheet piling. readily available. stee NORTH AMERICAN STEEL SHEET PILING ASSOCIATION Steel Sheet Piling TECHNICAL REPORT RETAINING WALL COMPARISON Prepared by EIC Group,Inc., LLC teel sheet piling. economical wall systems stee heet piling.

More information

Province of Saskatchewan

Province of Saskatchewan Flyash Projects in Saskatchewan Collaborative Seminar Series on Responsible Use of Supplementary Cementing Materials (SCMs) in Performance Based Specifications" January 30,2006 1 Province of Saskatchewan

More information

SUPPLEMENTAL TECHNICAL SPECIFICATIONS BI-DIRECTIONAL STATIC LOAD TESTING OF DRILLED SHAFTS

SUPPLEMENTAL TECHNICAL SPECIFICATIONS BI-DIRECTIONAL STATIC LOAD TESTING OF DRILLED SHAFTS July 14, 2015 1.0 GENERAL BI-DIRECTIONAL STATIC LOAD TESTING OF DRILLED SHAFTS This work shall consist of furnishing all materials, equipment, labor, and incidentals necessary for conducting bi-directional

More information

SHAFT CONSTRUCTION IN TORONTO USING SLURRY WALLS

SHAFT CONSTRUCTION IN TORONTO USING SLURRY WALLS SHAFT CONSTRUCTION IN TORONTO USING SLURRY WALLS Vince Luongo Petrifond Foundation Co., Ltd. PROJECT DESCRIPTION The York Durham Sanitary System (YDSS) Interceptor in the Town of Richmond Hill located

More information

STANDARD SPECIFICATIONS SECTION MICROTUNNELING

STANDARD SPECIFICATIONS SECTION MICROTUNNELING STANDARD SPECIFICATIONS SECTION 02441 MICROTUNNELING PART 1 GENERAL 1.1 DESCRIPTION A. Section includes requirements for installing casing pipe by use of a Microtunneling operation as defined herein. B.

More information

Tremie Concrete CM 420 CM 420 CM 420 CM 420. Temporary Structures. Tremie Concrete

Tremie Concrete CM 420 CM 420 CM 420 CM 420. Temporary Structures. Tremie Concrete Tremie Concrete Underwater concrete plays an important role in the construction of offshore structures. It may be used to tie together various elements in composite action (i.e., to tie piling to the footing).

More information

ITEM 416 DRILLED SHAFT FOUNDATIONS

ITEM 416 DRILLED SHAFT FOUNDATIONS ITEM 416 DRILLED SHAFT FOUNDATIONS 416.1. Description. Construct foundations consisting of reinforced or non-reinforced concrete drilled shafts with or without bell footings. 416.2. Materials. Use materials

More information

The Manitoba Water Services Board SECTION

The Manitoba Water Services Board SECTION Page 1 of 10 Part 1 General 1.1 DESCRIPTION OF WORK.1 This work shall consist of the removal of all materials of whatever nature, necessary for the proper placement of structure foundations, the supply

More information

CH. 6 SOILS & FOUNDATIONS

CH. 6 SOILS & FOUNDATIONS CH. 6 SOILS & FOUNDATIONS SOIL PROPERTIES Classified into four groups - Sands & gravels - Clays - Silts - Organics Subsurface Exploration Core borings: undisturbed samples of soil - Recovered bore samples

More information

Wind Design -- Basic wind speed of 85 MPH, Exposure B, Building Category III, Importance Factor I = 1.15.

Wind Design -- Basic wind speed of 85 MPH, Exposure B, Building Category III, Importance Factor I = 1.15. 10.0 STRUCTURAL EVALUATION 10.1 Code Analysis -- A major renovation of Patterson Hall would require that any and all modifications to the existing structure meet the 2003 International Building Code (IBC)

More information

Construction methods and associated risks for rigid and flexible retaining walls. Authors: Martin Larisch Steve Gates 13 th November 2013, Sydney

Construction methods and associated risks for rigid and flexible retaining walls. Authors: Martin Larisch Steve Gates 13 th November 2013, Sydney Construction methods and associated risks for rigid and flexible retaining walls Authors: Martin Larisch Steve Gates 13 th November 2013, Sydney 1 Introduction - Definitions Retaining walls are used for

More information

DEPARTMENT OF BUILDING REGULATIONS

DEPARTMENT OF BUILDING REGULATIONS DEPARTMENT OF BUILDING REGULATIONS 1495 WEST LONGVIEW AVENUE SUITE 202A MANSFIELD, OHIO 44906 Phone (419) 774-5517 Fax (419) 774-6317 permits@richlandcountyoh.us www.richlandcountyoh.us/c&p.htm Guide for

More information

SECTION 19 STRUCTURAL DESIGN. Table of Contents

SECTION 19 STRUCTURAL DESIGN. Table of Contents SECTION 19 STRUCTURAL DESIGN Table of Contents 19.0 STRUCTURAL DESIGN... 2 19.1 Standards... 2 19.2 Preamble... 2 19.3 Geotechnical Investigation... 4 19.4 Design Loads for Floors... 5 19.5 Reinforced

More information

SECTION XXIII EXCAVATION AND BACKFILLING

SECTION XXIII EXCAVATION AND BACKFILLING SECTION XXIII EXCAVATION AND BACKFILLING This section includes guidelines for excavation and backfilling of utilities and structures. A. DEFINITIONS 1. Open areas: Those areas that do not include building

More information

Earth Retaining Structure using Cutter Soil Mixing technology for the Villa Paradisio Project at Cannes, France

Earth Retaining Structure using Cutter Soil Mixing technology for the Villa Paradisio Project at Cannes, France Earth Retaining Structure using Cutter Soil Mixing technology for the Villa Paradisio Project at Peixoto, Artur, Geo-Rumo,Tecnologia de Fundações, S.A., Portugal, artur.peixoto@georumo.pt Sousa, Estela,

More information

New Trends in Auger Pressure Grouted Piles

New Trends in Auger Pressure Grouted Piles New Trends in Auger Pressure Grouted Piles Tracy Brettmann, P.E. Regional Manager, Berkel & Company Contractors, Inc., Richmond, Texas 77469 Abstract: There have been several interesting new trends developing

More information

TECHNICAL SERVICES DIGEST APRIL 2014

TECHNICAL SERVICES DIGEST APRIL 2014 210 TECHNICAL SERVICES DIGEST APRIL 2014 SINGLE-WYTHE BRICK FENCES This digest contains information and suggested details on single-wythe brick fences, including details that we recommend be included.

More information

PRECAST STRUCTURE ELEMENTS GUIDELINES

PRECAST STRUCTURE ELEMENTS GUIDELINES PRECAST STRUCTURE ELEMENTS GUIDELINES TABLE OF CONTENTS SECTION 1 GENERAL INFORMATION 3 SECTION 2 TYPICAL SUBSTRUCTURE ELEMENTS 6 SECTION 3 USE OF TYPICAL DETAIL SHEETS 9 SECTION 4 SHEET CHECKLIST 10

More information

Innovative engineering to control Big Ben s tilt

Innovative engineering to control Big Ben s tilt ROBERT MAIR FREng CAMBRIDGE UNIVERSITY DAVID HARRIS GEOTECHNICAL CONSULTING GROUP EARTH, AIR AND WATER Innovative engineering to control Big Ben s tilt Design and construction of the Jubilee Line Extension

More information

Deephams Sewage Treatment Works: 18.5m Internal Diameter Pumping Station Shaft

Deephams Sewage Treatment Works: 18.5m Internal Diameter Pumping Station Shaft Deephams Sewage Treatment Works: 18.5m Internal Diameter Pumping Station Shaft Stephen Woodrow 1, David Beadman 2, Oisín Gibson 3 1 AECOM, United Kingdom 2 Byrne Looby Partners, United Kingdom 3 J Murphy

More information

Figure 1 - Location of the Hebron Oil Field [1]

Figure 1 - Location of the Hebron Oil Field [1] PT-2013: Coastal and Ocean Engineering ENGI.8751 Undergraduate Student Forum Faculty of Engineering and Applied Science, Memorial University, St. John s, NL, Canada Paper Code. (PT-2013-Soucy) Cement-Bentonite

More information

SECTION AGGREGATE BASE COURSE. A. The following is a list of SPECIFICATIONS which may be related to this section:

SECTION AGGREGATE BASE COURSE. A. The following is a list of SPECIFICATIONS which may be related to this section: SECTION 32 11 23 AGGREGATE BASE COURSE PART 1 GENERAL 1.01 SECTION INCLUDES A. The WORK to be performed includes the preparation of the aggregate base course foundation; and the production, stockpiling,

More information

Post-Tensioned Slab Foundations in Colorado: Alan F. Claybourn, P.E.

Post-Tensioned Slab Foundations in Colorado: Alan F. Claybourn, P.E. Post-Tensioned Slab Foundations in Colorado: Alan F. Claybourn, P.E. Principal/Manager of Engineering with Kumar and Assoc. Greg Arbour, P.E. Former President of KLG Corporation Jim Houlette, P.E. Director

More information

DESIGNING STRUCTURES IN EXPANSIVE CLAY

DESIGNING STRUCTURES IN EXPANSIVE CLAY DESIGNING STRUCTURES IN EXPANSIVE CLAY A GUIDE FOR A RCHITECTS AND E NGINEERS Table of Contents 1. Introduction Page 1 2. Common Foundation Systems Page 2 3. Drilled Piers Page 3 a. Skin Friction Piers

More information

GEOMEMBRANE LINERS, GEOSYNTHETIC SYSTEMS & FLOATING COVERS FOR LAGOONS

GEOMEMBRANE LINERS, GEOSYNTHETIC SYSTEMS & FLOATING COVERS FOR LAGOONS 800-356-1480 256 852-0378 256 852-0388 fax GEOMEMBRANE LINERS, GEOSYNTHETIC SYSTEMS & FLOATING COVERS FOR LAGOONS Floating covers for odor control. Floating cover with gas extraction system. 1 Your Total

More information

Design and Construction of Auger Cast Piles

Design and Construction of Auger Cast Piles Design and Construction of Auger Cast Piles 101 th Annual Road School 2015 3/11/2015 Malek Smadi, Ph.D., P.E. Principal Engineer - GEOTILL - Fishers, IN msmadi@geotill.com - www.geotill.com CONTENTS 1.

More information

Minimum Residential Wood Construction Specifications

Minimum Residential Wood Construction Specifications Minimum Residential Wood Construction Specifications These are minimum specifications established by the California Building Code and do not supersede any more restrictive specifications shown on the approved

More information

INNOVATIVE EARTH RETENTION, UNDERPINNING AND WATER CONTROL TECHNIQUES FOR A MEGA-DEVELOPMENT IN IN SALT LAKE CITY, UTAH

INNOVATIVE EARTH RETENTION, UNDERPINNING AND WATER CONTROL TECHNIQUES FOR A MEGA-DEVELOPMENT IN IN SALT LAKE CITY, UTAH INNOVATIVE EARTH RETENTION, UNDERPINNING AND WATER CONTROL TECHNIQUES FOR A MEGA-DEVELOPMENT IN IN SALT LAKE CITY, UTAH ABSTRACT Tom Hurley, M. ASCE Project Manager Nicholson Construction Company Salt

More information

CASE STUDY INSTALLATION OF A HDPE CURTAIN WALL WITH SHEETPILE TIE-IN ON BOTH ENDS

CASE STUDY INSTALLATION OF A HDPE CURTAIN WALL WITH SHEETPILE TIE-IN ON BOTH ENDS CASE STUDY INSTALLATION OF A HDPE CURTAIN WALL WITH SHEETPILE TIE-IN ON BOTH ENDS Robert M. Schindler 1 and Peter C. Maltese 2 Abstract The plans for eliminating the off-site migration of a non-aqueous

More information

SAMPLE GUIDE SPECIFICATIONS FOR OSTERBERG CELL LOAD TESTING OF DEEP FOUNDATIONS

SAMPLE GUIDE SPECIFICATIONS FOR OSTERBERG CELL LOAD TESTING OF DEEP FOUNDATIONS Page 1 of 9 SAMPLE GUIDE SPECIFICATIONS FOR OSTERBERG CELL LOAD TESTING OF DEEP FOUNDATIONS 1. GENERAL REQUIREMENTS 1. Description of Work: This work consists of furnishing all materials, equipment and

More information

Helical Pile Application and Design

Helical Pile Application and Design PDHonline Course C513 (1 PDH) Helical Pile Application and Design Instructor: Andrew P. Adams, PE 2012 PDH Online PDH Center 5272 Meadow Estates Drive Fairfax, VA 22030-6658 Phone & Fax: 703-988-0088 www.pdhonline.org

More information

We undertake extensive piling work, grouting work and ground improvement techniques to facilitate a smooth construction process.

We undertake extensive piling work, grouting work and ground improvement techniques to facilitate a smooth construction process. Company Profile Highland Contracting for Foundations is not your average piling contractor. We offer one of the largest variation of piling works, piled foundations and retaining wall construction. Highland

More information

FOOTING SYSTEMS Reference - As Residential slabs and footings - construction and BCA.

FOOTING SYSTEMS Reference - As Residential slabs and footings - construction and BCA. FOOTING SYSTEMS Reference - As 2870 - Residential slabs and footings - construction and BCA. Footings transfer building loads onto foundations. House design and shape must be designed before footing design

More information

Auger Boring. Dr. Mark Knight. Centre for Advancement of Trenchless Technologies (CATT) University of Waterloo. New Installations.

Auger Boring. Dr. Mark Knight. Centre for Advancement of Trenchless Technologies (CATT) University of Waterloo. New Installations. Auger Boring Dr. Mark Knight Centre for Advancement of Trenchless Technologies (CATT) University of Waterloo 1 New Installations New Installations Non-Steering Methods Steering Methods Moling/Piercing

More information

SECTION 31 20 00 EARTH MOVING

SECTION 31 20 00 EARTH MOVING SECTION 31 20 00 PART 1 - GENERAL 1.01 DESCRIPTION A. This Section describes the requirements for excavating, filling, and grading for earthwork at Parking Structure, new exit stair and as required to

More information

Retaining Wall Level and Sloping Backfill Minimum Requirements

Retaining Wall Level and Sloping Backfill Minimum Requirements Retaining Wall Level and Sloping Backfill Minimum Requirements Construction of retaining walls, except those less than four (4) feet high, measured from the bottom of the footing to the top of the wall

More information

Construction of a Seepage Cut-Off and Temporary Retaining Wall for an Excavation in Alluvial Soils using Cutter Soil Mixing Methods

Construction of a Seepage Cut-Off and Temporary Retaining Wall for an Excavation in Alluvial Soils using Cutter Soil Mixing Methods Construction of a Seepage Cut-Off and Temporary Retaining Wall for an Excavation in Alluvial Soils using Cutter Soil Mixing Methods Jeff Scott, EIT Geopac Inc., Richmond, BC, Canada Dominique Jullienne,

More information

Section 02415. Installation of pipe and casing for sanitary sewer by methods of augering.

Section 02415. Installation of pipe and casing for sanitary sewer by methods of augering. ITY OF PRLN UGRING PIP OR SING FOR SWRS Section 02415 UGRING PIP OR SING FOR SWRS 1.0 G N R L 1.01 STION INLUS Installation of pipe and casing for sanitary sewer by methods of augering. References to Technical

More information

SECTION 02200 SUPPORT OF EXCAVATION

SECTION 02200 SUPPORT OF EXCAVATION SECTION 02200 PART 1 GENERAL 1.01 DESCRIPTION A. Section including specifications for design and installation of excavation support. B. Section also includes specifications for excavation support systems

More information

SMW. Soil Mixing Wall System 03/2012

SMW. Soil Mixing Wall System 03/2012 SMW Soil Mixing Wall System 03/2012 The SMW-System Mixing self-hardening slurry in-situ with native soil (SMW) is a cost-effective technique for the construction of walls for groundwater control (cut-off

More information

Materials. Estimating Steel. Players. Materials. Shop Drawings. Detailing Process. Standard shapes. Fabricated members, Built-up sections

Materials. Estimating Steel. Players. Materials. Shop Drawings. Detailing Process. Standard shapes. Fabricated members, Built-up sections Materials Standard shapes W sections, C channels, Structural T, Angles, Pipes, Tubes, Rods and Plates Fabricated members, Built-up sections Adding plates to beam flanges, Stiffeners to beam webs Built

More information

North American Society for Trenchless Technology (NASTT) NASTT s 2015 No-Dig Show. Denver, Colorado March, 15-19, 2015

North American Society for Trenchless Technology (NASTT) NASTT s 2015 No-Dig Show. Denver, Colorado March, 15-19, 2015 Khaled Elnabolsy, GHD, Markham, Ontario ABSTRACT: North American Society for Trenchless Technology (NASTT) NASTT s 2015 No-Dig Show Denver, Colorado March, 15-19, 2015 SHAFT CONSTRUCTION METHODS COMPARISON

More information

Pro-Lift Steel Pile Foundation Repair

Pro-Lift Steel Pile Foundation Repair Pro-Lift Steel Pile Foundation Repair Pro-Lift Steel Pile Foundation Repair System Pro-lift steel piles are designed for the stresses of Texas soils. They can have multiple steel walls, depending on the

More information

High Strain Dynamic Load Testing of Drilled Shafts

High Strain Dynamic Load Testing of Drilled Shafts Supplemental Technical Specification for High Strain Dynamic Load Testing of Drilled Shafts SCDOT Designation: SC-M-712 (9/15) September 3, 2015 1.0 GENERAL This work shall consist of performing high-strain

More information

LANDSCAPE RETAINING WALLS

LANDSCAPE RETAINING WALLS LANDSCAPE RETAINING WALLS PART 1 - GENERAL 1.01 SECTION INCLUDES A. Modular Block Retaining Walls B. Limestone Retaining Walls C. Landscape Timber Retaining Walls 1.02 DESCRIPTION OF WORK A. Construction

More information