All it takes for environmental research

Soil core sampling

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Soil core sampling

This presentation shows:• Aim and typical research purposes• Working principles• Limitations• Main markets• Main products

– Benefits– Remarks– Applications

• Important related products• A sheet on how you can get even more information !

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Aim of the products: • (Near)-undisturbed sampling for

– Profile description (layers)– Physical composition (roots, density, resistance, water

and air content) – Chemical composition (agronomical and

environmental)

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Typical research purposes:• Soil profile description

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Typical research purposes:• Physical research in the lab

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Typical research purposes:• Archaeological research

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Typical research purposes:• Research on turf / sports field

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Typical research purposes:• Environmental and agricultural research

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Main markets: (see PKD for more details)• Soil science• Geotechnical consultancy• Environmental / agricultural consultancy• Sport stadiums / Golf courses / Turf research• Universities (different departments)• Nature conservation

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Main productsof this theme

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Main products • Gouge augers• Akkerman core sampler / Van der Horst sampler• In-situ soil coring kit for chemical soil research• On site no-loss soil sampler for soil with volatiles• Sample ring kits

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Gouge augers

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Working principles: gouge augers• Half round sample tube pushed or hammered into the soil

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Benefits• Sets suitable for soft soils or hard soils• Non toxic high tensile strength steel• Different dimensions for nice samples• Perfect for rapid soil profiling• Stepwise sampling possible• Push / hammer, twist, pull; that’s it !

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Applications:• Peat research• Agricultural research• Quick profile description• Installation of field

measurement equipment

Remarks• Semi undisturbed sample• Bayonet connections not

allowed to operate with hammer

• Lost of sandy samples belowgroundwater table

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Percussion drilling

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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 debris-

rich soils– Percussion drilling sets 04.19.SC/SD/SE/10.100

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Percussion drilling sets 04.19.SC / SD / SE• Benefits

– Resulting in almost undisturbed 1or 2 mtr long samples

– Stepwise working limits friction and drilling time– Various samplers

­ Open samplers 1 and 2 m long

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Percussion drilling sets 04.19.SC / SD / SE– Various samplers

­ Closed sampler with transparent liner­ Sampling in a thin plastic foil

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Percussion drilling sets 04.19.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

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Akkerman&

Van der Horstcore samplers

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Working principles: Akkerman core sampler / Van der Horst sampler• Stainless steel sample tube is fixed to a core sampler and

hammered into a bore hole with dropping weight or hammer

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Benefits Akkerman core sampler• Large high impact hammer• Ball valve system for best sample retrieval• Strong hydraulic extruder• Liners available for tubes with core catchers

Benefits Van der Horst core sampler• The slimmest system; only 70 mm OD• Can be used in narrow casings• Uses standard large volume stainless tubes• Works with drop hammer or hand hammer• Liners available for tubes with core catchers

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Applications:• Geotechnical soil research• Civil engineering• Drilling companies• Harbours

Remarks• Akkerman set needs to operate with hammering weight

and winch• Van der Horst can be operate into casing tubes of 75 mm• Samples are suitable for geotechnical and environmental

research

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AquaLock sampler

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Working principle: AquaLock• A piston is blocked by water below in the sample tube• Sampler is brought down.• Water pressure is removed and sampler filled.• Water pressure is used to expel the sample

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Benefits AquaLock• Takes beautiful samples to large depths (50 m)• Can be used with Sonic drill rigs• Available in 50 and 70 mm diameters• Can take depth specific samples• Sample lengths up to 4 m• Can work with additional core catcher

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Applications:• Environmental research• Geotechnical research• Civil engineering• Drilling companies• Harbours (sediment)• Archaeological research

Visit: www.sonicsampdrill.com

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Core sampling of soil with volatiles

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Eijkelkamp supplies two products• In-situ soil corers 225 ml (images left)• On-site soil corer 16 ml (images right)

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In-situ soil coring kit for chemical soil research (04.16)• Good for in-situ sampling at shallow depths• Ideal for cooling (48 hrs) or freezing (2 weeks)) method• Sample tube 40 mm is pushed and hammered in the soil• Not fit for stony soil• Coring tube sub-sampled in the lab prior to extraction

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Benefits• Completely prevents loss of volatiles during sampling and

storage– Verified sample conservation quality within Promote

European Environmental verification project • No use of chemicals or sample treatment in the field• Tubes and blocks can be reused after cleaning

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On-site “no-loss” soil coring kitfor soil with volatiles (04.10)Applications:• For cooling or freezing storage method• Also for methanol method• According to USA EPA METHOD 5035A,

various ISO standards and NEN5743

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Basic working principle• Sample is taken above ground from auger or corer• By sideways removal the coring ring is scraped off to a

remaining soil volume of 16 ml (25-30 gr)• Sample can be field stored in methanol or capped and

cooled

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Sample transportMethanol method:• Sample stored and shipped in

special small leak proof glass jars

Cooling method: • Diffusion proof aluminium lined seals and

stainless coring ring assure no loss or sorption of volatiles

• In lab sample is uncapped and transferred into the glass jar for extraction

• Another (disturbed or undisturbed) sample is used for dry weight determination

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Stickers

Sample scraped to 16 ml size

Seal, aluminium lined

Cap with pre-mounted seal

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Use for cooling or freezing storage method1. Auger or gouge is subsampled2. Coring ring pushed out 3. Excess soil is scraped off. Coring ring then holds 16 ml ~25

gr. of soil4. Rims of ring are cleaned to be capped with diffusion and

leak proof caps5. Sticker is put on PE storage bag cooling

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Use with methanol method1. Auger or gouge is subsampled2. Coring ring pushed out. 3. Remaining excess soil is pushed out with plunger4. Coring ring is placed back and soil is pushed in methanol

filled jar (entire ring also fits in jar)5. Device is field decontaminated with flame

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Benefits• Suits also stony soil• Little waste in laboratory• Suits both methods• Aluminium lined absolutely

diffusion and leak proof seals• Close fit glass jars with teflon lined

seals.• Reusable and durable coring rings

which may alternate between lab and user (or disposable with the caps)

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Sample rings

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Working principles of sample ring kits• Sample ring will be filled with soil with help of an open

or closed ring holder

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Benefits• Minimal disturbance (“undisturbed”)• Rings have a very accurate volume• High quality samples for physical tests• Three available diameters (different dimensions)• Can be hammered; applicable in all soils• Sample ring protected by closed ring holder• Kit allows sampling at surface and at depth• Low maintenance

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Applications:• Soil science• Soil physical analyses• Agricultural research

Remarks• Rings and holders are made of stainless steel• Rings can be ordered with special numbers• Lost of sandy samples below groundwater table

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The circle of the need of undisturbed soil sampling

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More information ?Brochures (catalogue and www.eijkelkamp.com)Complementary information (not for all products)Manuals (almost all products)Product Knowledge D-base (PKD-internet)Product Training: ETC@eijkelkamp.comAdditional questions ?! Write info@eijkelkamp.comor ask local distributor !

Soil core sampling