The split-spoon sampler is a hollow tube consisting of two halves split lengthwise and held together by circular connector head at top and drive shoe (tip) at bottom.
Splitspoon samplers are used for taking samples for lithological descriptions and geotechnical testing. The use of liners in split-spoon samplers allows for the collection of representative samples suitable for chemical analysis of all types of contaminants.
Benefits of SPT include:
• Simple and inexpensive
• Ease of test for determining bearing pressure and liquefaction potential
• Easy to obtain samples in unconsolidated materials above 100ft
• Produce very good-quality, slightly disturbed samples for both lithological description and chemical analysis
• Relatively efficient and inexpensive at shallow and intermediate depths
• Can be used with thin-walled liners
• Ideal for use through 3 1/2″ geotechnical direct push systems (dual tube)
Application:
The SPT test involves attaching a standard cylindrical sampler, split-spoon sampler, to drill rods suitable for geotechnical testing and sampling. The samplers can be advanced to deeper depths through hollowstem auger borings or direct push tooling. The sampler is then driven into the ground with a geotechnical hammer and the number of blows needed for the tube to penetrate each 150mm (6”) up to a depth of 450mm (18”) is recorded. The sum of the number of blows required for the second and third 6” of penetration is termed the “standard penetration resistance,” or the “N-value”. The blow count provides an indication of the density of the ground and it is used in many geotechnical engineering formulas
Ordering Information:
California-Modified Style Split-Spoon Samplers for SPT
AWJ HEAD
18005 2″ OD x 18″ Long California Split Barrel Sampler w/ Waste Barrel, 4-TPI Sharp Shoe & AWJ Head
18006 2″ OD x 24″ Long California Split Barrel Sampler w Waste Barrel, 4-TPI Sharp Shoe & AWJ Head
70026 2 1/2″ OD x 18″ Long California Split Barrel Sampler w/Waste Barrel, 4-TPI Sharp Shoe & AWJ Head
70027 2 1/2″ OD x 24″ Long California Split Barrel Sampler w/Waste Barrel, 4TPI Sharp Shoe & AWJ Head
AW HEAD
18001 2″ OD x 18″ Long California Split Barrel Sampler w/Waste Barrel, 4-TPI Sharp Shoe & AW Head
18000 2″ OD x 24″ Long California Split Barrel Sampler w/Waste Barrel, 4-TPI Sharp Shoe & AW Head
SHOE
70028 2″ OD x 4-TPI Sharp (ASTM) Shoe for California Style Samplers
70030 2 1/2″ OD x 4-TPI Sharp (ASTM) Shoe for California Style Samplers
WASTE BARREL ASSEMBLY
70029 2″ OD x 4-TPI Waste Barrel Assembly for California Style Samplers
70031 2 1/2″ OD x 4-TPI Waste Barrel Assembly for California Style Samplers