Soil sampling (augers) All it takes for environmental research

Transcription

1 All it takes for environmental research

2 This presentation shows: Aim and typical research purposes Working principles Main products Benefits Remarks Applications User groups 2

3 Aim of the products: Soil research above and below the groundwater table Soil sampling both disturbed and semi-disturbed Soil sampling the difficult and the easy way 3

4 Typical research purposes Profile description 4

5 Typical research purposes Soil characterizations See: World Soil Information at 5

6 Typical research purposes Sampling for granular composition Brick and pottery industry (clays) 6

7 Typical research purposes Sampling for granular composition Building industry 7

8 Typical research purposes Sampling for granular composition Geotechnics (soil stability) 8

9 Typical research purposes Sampling for chemical composition for purposes like Soil fertility Monitoring during remediation Soil pollution Mining prospection Soil salinization or alkalinity problems 9

10 Typical research purposes Placing groundwater monitoring wells 10

11 Main markets for this group of products Soil science Agronomy Environmental science Civil engineering Hydrology Geology See PKD for more details! Composing a soil profile from separate samples 11

12 Main products of this theme 12

13 Main products (overview) Hand auger sets SO and SZ /01.11.SE / Piston auger sets SA / SB Bailer boring sets SA / SA / Percussion drilling sets SC / SD / SE / Sonic drilling equipment

14 Augers 14

15 Augers, different types Typical augers Dutch (Edelman) augers In moist soils they give semi-disturbed soil samples Clay types 7+10 cm Combination types Sand types Coarse sand types 15

16 Augers, different types Other augers meant for dry and / or stony soils Will give disturbed samples Spiral auger and stone catcher not for sampling Stony soil augers 7+10 cm Riverside augers Spiral auger Stone catcher 16

17 Working principle Drilling into the soil by twisting an auger by hand Hand auger sets SO and SZ /01.11.SE /

18 Augers, different types supplied as Single augers (1.20 meter max) Cheap, simple. Light weight Auger bodies with extendable rods For deeper drillings Connections: Rods with bayonet coupling (most popular) Rods with conical screw thread connections 18

19 Remarks Operation with standard sets is 5-7 meters depths Maximal normal operation is till 20 meters depth Stones and rocks can limit applicability Water-saturated sand can be sampled with piston auger (2 m max) or drilled with a bailer in a casing 19

20 Individual products: SO SZ Auger sets for heterogeneous soils. Benefits Range of auger bodies copes with all soils Includes piston sampler for saturated sands Includes water level sounder Proven: Kit will serve tenths of years Remarks 5 Meters as maximum depth of the sets (extra rods are possible) Limited for sampling below water level in liquid sandy soil (0.75 m with piston sampler) 20

21 01.16 Prospecting kit for geotechnical survey Benefits Range of auger bodies copes with most soils Minimum set that will serve many purposes Remarks 5 Meters as maximum depth of the sets (extra rods are possible) Bag can be used as backpack 21

22 01.11.SE Ergonomical auger set Sampling soil above the groundwater table with less effort, wear and tear for body parts Benefits Always works at the right height Less wear and tear for wrist, elbow, shoulders Less force required because of longer handles Ratchet system so no full turns necessary Always work at the right height 22

23 01.11.SE Ergonomical auger set Main applications A must for people that do this work very regularly Advised for people that do this work incidentally 23

24 Main applications for auger sets (see PKD for more details) Profile description Chemical soil research Geotechnical soil research Archaeological soil research Environmental research Monitoring well installation (in cohesive soils) Bore hole drilling Soil classification Civil engineering 24

25 Piston samplers 25

26 Working principle Pushing into the soil while keeping the piston in a fixed position Piston auger sets SA / SB 26

27 01.09.SA / SB Piston samplers Sampling semi undisturbed in saturated sandy soils Benefits Perfect profile description in one minute No hassle with casings and coring tubes View up till 2 m of saturated sandy soil Also for water bottoms Remarks Rinse before and after use to avoid wear of piston 27

28 Main applications for piston samplers (see PKD for more details) Profile description of water saturated sand layers Small diameter well installation up to two meters in saturated sandy layer Water bottom sampling (see that section) A non-typical piston sampling situation; standing on ice and sampling the sediments below! 28

29 Bailer boring 29

30 Working principle Bailing: Moving up and down a bailer in a casing lowered in the soil Generally used for fluid water-saturated sand Use Bailer boring sets SA / SA /

31 01.12.SA Hand operated bailer boring and auger set for heterogeneous soils. To extend drilling also into liquid sand layers Benefits Perfect kit for all not too stony soils Works above and below water level Extremely durable, rapid, sturdy light weight casings Bailing-platform allows pushing casings down easily Special bailers allow bailing gravely sand layers 31

32 01.12.SA Hand operated bailer boring and auger set for heterogeneous soils. Remarks Can be extended with more rods and casings if groundwater table is deeper Can be combined with longer piston sampler Main applications: Installing monitoring wells Taking core samples at depth 32

33 02.04.SA Bailer boring rig with auger set, tripod and winch Drilling sets for shallow water wells (sets 15.01/02/05/07) Principle: The bailer (and casing) is now moved by cable and lifted and lowered by hand winch from a tripod Benefits Perfect for all not too stony soils Works above and below water level Extremely durable also in tropical countries Tripods + winches can also be used to install pumps in wells 33

34 02.04.SA Bailer boring rig with auger set, tripod and winch Drilling sets for shallow water wells (sets 15.01/02/05/07) Remark: At least two-four persons needed 34

35 Main applications for large bailer boring sets (see PKD for more details) Monitoring and drinking water well installation Soil core sampling at depth 35

36 Percussion drilling 36

37 Working principle percussion drilling Hammering a gouge or a casing with a lost point into the soil by machine Soil sampling and drilling in harder or stone or debrisrich soils Percussion drilling sets SC/SD/SE/

38 Percussion drilling sets SC / SD / SE Benefits Resulting in almost undisturbed 1 or 2 m long samples Stepwise working limits friction and drilling time Various samplers Open samplers 1 and 2 m long 38

39 Percussion drilling sets SC / SD / SE Various samplers Closed sampler with transparent liner Sampling in a thin plastic foil 39

40 Percussion drilling sets SC / SD / SE Remarks Will not drill through concrete, thick roots, rubber tyres a.s.o. Limited to soils with at least some porosity Shear stress value of soil cannot be very high 40

41 Lost cone drilling set Principle: The lost cone, 70 mm, displaces the soil for steel casing 54 mm and is hammered down with a percussion hammer. Benefits Non-toxic iron lost point Solves problems installing wells in stony soils Also the safest way to lower explosives Bentonite plugs will repair layers perfectly Ideal in combination with Direct Well Tested for ten-thousands of drilling meters 41

42 Lost cone drilling set Remarks Limited to soils with some porosity Shear stress value of soil cannot be too high Direct Well with riser tubing and prefab bentonite 42

43 Lost cone drilling set Main applications (see PKD for more details) Monitoring well installation Seismic soil research 43

44 Sonic drilling 44

45 Principle: Sonic drilling system Two excenters vibrate the casing at 150 Hz which liquefies soil around the casing enabling large drilling depths with a small rig 45

46 30.01 Sonic drilling system Benefits: Extremely rapid Aqualock sampler can take practically undisturbed samples 2-4 m long Casings available 63, 88 and 100 mm outside diameter Perfect for seismic explorations, Direct Well, MultiChannel Well and Quality Well installation Prefab filters and prepacked bentonite products enable perfect closure of impermeable layers MultiChannel Well enables installing 3 or 7 wells in one borehole Unit can be mounted on existing rigs Compact, medium and large Sonic units available 46

47 30.01 Sonic drilling system Installing a MultiChannel well (available on video) Visit OVERVIEW Sonic Systems Techniques kw input Max. diam. Typical depth Vibration force bar Oil flow l/min Formation s Casing manipulator CompactSonic (CS) type 2x5 rotation or vibration mm 30 m 10 ton soft - medium no MidSonic (MS) type 4x5 rotation and vibration mm 100 m 20 ton all yes LargeSonic (LS) type 2x17,5 rotation and vibration mm 200 m 35 ton all yes 47

48 More information? Brochures (catalogue and Complementary information (not for all products) Manuals (almost all products) Product Knowledge D-base (PKD-internet) Product Training: Additional questions?! Write or ask local distributor! 48