Localización de la obra. Piled Foundation for the Chiapas Bridge in Mexico. God Morgen mine Damer og Herrer! Wolfgang G. Brunner.

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1 Localización de la obra Piled Foundation for the Chiapas Bridge in Mexico God Morgen mine Damer og Herrer! Wolfgang G. Brunner Maschinen

2 Localización de la obra Location of State Chiapas in Mexico

3 State Chiapas in Mexico Localización de la obra Chiapas Bridge

4 Location of the Jobsite Localización de la obra Veracruz Puente Chiapas Procedimiento no. 1 Chiapas 1 Procedimiento no. 2 Chiapas 2 Oaxaca Chiapas

5 Data of Chiapas Bridge Datos generales de proyecto Length 1208 m Height above water 10 m Maximum total length of drilling string m Maximum water depth 92.5 m Drilling depth 56.0 m Contract amount including VAT 100 million US $ Execution period of foundation 7 month

6 Datos generales de proyecto Construction of Pier Foundations Stage 1: Fabrication on land of steel jacket on its side comprising four 2.80 m dia. steel tubes and struts. Stage 2: Floating jacket into position of pier with side buoyancy tanks. Stage 3: Up-ending of jacket Driving four Ø 1000 mm dia. tubular support leg piles with structural connections to jacket. Stage 4: Construction of working platform on top of jackets, lifting hydraulic casing oscillator onto platform and fixing it onto platform. Installation of 2500 mm dia. drill casing comprising a sacrificial section jointed onto the bottom of the main casing section.

7 Datos generales de proyecto Construction of Pier Foundations Stage 5: Mounting and connecting BA 2500 top drill on drill casing. Stage 6: Installation of drill head, ballast rods and air-lift pipe assembly with casing guides. Stage 7: Drilling down with air-lift flushing as the casing oscillator rotates the 2500 mm dia. drill casing and jacks it down with its powerful hydraulic rams. In order to reduce the frictional resistance on the drill casing, three hydraulically operated roller bits are extend laterally during drilling. They underream the casing shoe. Embedment of drill casing in conglomerate up to 20m. Stage 8: Drilling with fully extended roller bits to final depth.

8 Datos generales de proyecto Construction of Pier Foundations Stage 9: Lifting top drill off drill casing, removing drill string and drill head. Cutting drill casing inside steel jacket tube approximately 5 m above bottom end of steel tube. Stage 10: Raising upper section of drill casing and holding it in position with casing oscillator. Stage 11: Installation of reinforcement cage, which extends from the base of the pile to 5 m above the top of the enlarged pile head. Stage 12: Lowering tremie pipe assembly into drill casing and concreting pile to top of reinforcing cage. Stage 13: Extracting upper drill casing string. Stage 14: Constructing remaining three piles.

9 Steel Jackets: Fabrication Launching Floating into Position

10 Jacket Manufacturing Yard

11 Fabrication of Jackets Fabricación de jackets

12 Launching of Jacket step 1: pull jacket winch step 1: retract jacket step 1: float jacket

13 Launching of Jacket Botado de los jackets 8, 7, 6 y 5 Jacket no 8 Jacket no 7 Jacket no 6 Jacket no 5

14 Launching of Jacket into Water

15 Floating Jacket into Position Step 1: float to position Step 2: turn through water inflow Step 3: continue turning Step 4: vertical position Step 5: remove floating body Step 6: install steel piles with diesel hammer

16 Floating Jacket into Position floating valves guides for steel piles floating body

17 Floating Jacket into Position Transporte length 70 m

18 Floating Ziele der Bodenverbesserung Jacket into Position

19 Drilling with RC Drill: Installation of Casing Mounting of RC Drill Drilling in Conglomerate and Rock

20 Principle of RC (Reverse Circulation) System /25-30/35

21 Construction of Working Platform

22 Preparation of Drill Casing Dia 2500 mm

23 Installation of Casing with Oscillator

24 Installation of Casing and RCD Drill RC Drill BA 2500

25 Installation of Casing and Drilling into Rock RCD drill rig BA 2500 oscillator BV 2500 casing dia 2500 mm open hole drilling Rock

26 Drill Head with Underreamer Dia 2350 mm underreamer roller

27 Stabilizer and Flanged Drill Pipes

28 Stabilizer and Flanged Drill Pipe

29 Stabilizer and Flanged Drill Pipe

30 Drilling with RC Drill and Oscillator

31 Drilling with RC Drill and Oscillator

32 Underreaming the Casing during Drilling hydraulic power pack for moving out the underreamer rollers casing movable roller rock

33 Drilling at Jacket No. 8

34 Remove Casing cutting drill casing with diver, max water depth 80 m and recover the cut off casing section oscillator BV 2500 cut casing by diver casing dia 2500 mm Rock

35 Completion of Pile: Installation of Reinforcement Cage Placing Concrete

36 Installation of Reinforcement Cage Pipes for concrete inspection

37 Installation of Reinforcement Cage

38 Installation of Reinforcement Cage placing reinforcement cage into the borehole casing dia 2500 mm uncased bore in rock Rock

39 Concreting the Pile concrete concrete concrete concrete tremie pipe casing dia 2500 mm uncased bore in rock Rock

40 Concrete Pipe Line from the Shore to the Pier

41 Raked Piles Pile diameter: 1300 mm Inclination: 1: 3 Pile length: up to 50 m

42 Bridge Deck Construction: Construction of Pier Heads Pushing Bridge Deck

43 Concreting of Pier Head

44 Concreting of Pier Head

45 Concreting of Pier Head

46 Concreting of Pier Head

47 Concreting of Pier Head

48 Pier Overview Pier 6 Pier 7 Pier 8

49 Installation of Bridge Deck by Jacking Abutment 9 Pier 8 Pier 7 Pier m Abutment 9 Pier 6 jacking attachment Pier 8 Pier m

50 Fabricación de dovelas Installation of Bridge Deck by Jacking

51 Completed Chiapas Bridge Fabricación de dovelas

52 Thank you for your kind attention! Takk for Oppmerksomheten!

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