Standard Practice For Using Hollow Stem Augers For Geotechnical Exploration And Soil Sampling

Standard Practice for Using Hollow-Stem Augers for Geotechnical Exploration and Soil Sampling

 

Standard Test Method for Standard Penetration Test (SPT) and Split-Barrel Sampling of Soils

 

A well built, quality-crafted heavy-duty split tube sampler can be found in stock at Diedrich Drill. Our 2" O.D. split- spoons are heat treated for longer wear. 


The complete sampler includes a durable head, a split- section crafted of the finest quality 4130 steel and a heat treated show. The Diedrich Drill sampler is manufactured in a 2", 2-1/2", or 3" diameter size, and is available with the standard fine thread(8 threads per inch) shoe or a quick thread(4 threads per inch) shoe. Our full line of accessories for the spilt tube samplers includes steel and synthetic basket retainers, flap valves, and liners.


 

Standard Penetration Test (SPT) Sampler

 

Take the soil
 

The Standard Penetration Test (SPT) Sampler is used to lift the lower soil test soil as a sample to understand its nature. In order to make more understanding of the nature of the grassroots, it is sometimes necessary to take the original soil in the depths, which we call Standard Penetration Test (SPT) Sampler.

Brief overview
 

The Standard Penetration Test (SPT) Sampler is used to lift the lower soil test soil as a sample to understand its nature. In order to make more understanding of the nature of the grassroots, it is sometimes necessary to take the original soil in the depths, which we call Standard Penetration Test (SPT) Sampler.

Instructions for use:
 

Will take the soil ring shoe(casing shoe) drilled into the soil to the depth of the need to remove the excavator, after the ring casing shoe and semi-cylinder removed, with a scraper will take the soil at both ends of the excess soil scraping to repair, then take the soil within the ring Just 50 ml, the ring casing shoe soil can be used as a test pattern.

The Standard Penetration Test (SPT) Sampler used in the project is a ring casing shoe

Ring casing shoe is used to take the original soil is to do bulk density (soil density), compression, shear and penetration tests are essential to a commonly used instrument.
 

Mainly used to determine the compaction of the soil (1) the use of ring casing shoe and precautions

When used to shoe blade down, in the cut soil samples to avoid skew, so that the vertical force under the cutting, before using the ring casing shoe can apply a little Vaseline. After use, the ring casing shoe should be scrubbed and coated with some protective oil, to prevent rust.
 

(2) check the ring casing shoe
 

The ring casing shoe is calibrated at least once a year and its volume and quality are determined.

The inner diameter of the ring casing shoe shall be measured with a caliper and shall be rotated at least three diameters, accurate to 0.1 mm, and the maximum difference shall not exceed 1% of the standard value.
 

The quality of the ring casing shoe need to use 0.01g balance of the balance, accurate to 0.01g

The Standard Penetration Test (SPT) Sampler for archaeological use 
 

Standard Penetration Test (SPT) Sampler, hence the name of thinking, take the soil, is an archaeological tool. The above link (thread) archaeological tool probe rod, available underground at any point of soil used to observe. Through the observation and detection of soil, can distinguish between the existence of antiquity literature.

Take the focus of the Standard Penetration Test (SPT) Sampler
 

For the requirements of the structure of the Standard Penetration Test (SPT) Sampler, cattle Ben proposed to take the soil must ensure that the soil smoothly down to the bottom of the hole, into the soil, to minimize frictional resistance; to prevent the soil before the waste into the liner, and affect the original degree of soil samples; The earth to have a reliable sealing performance; structure should be simple, easy processing and operation. ① the top of the soil sample by the suction; ② soil sample at the bottom of the suction; ③ soil into the soil method and depth.
 

The role of the Standard Penetration Test (SPT) Sampler and the sampling method in the engineering geological survey is very large. For different stratigraphic conditions, if you can choose the appropriate soil into the process, the resistance was significantly reduced. It is of great benefit to improve the rate of soil samples and take quality by entering soil Standard Penetration Test (SPT) Sampler and sampling methods.

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Standard Practice for Using Hollow-Stem Augers for Geotechnical Exploration and Soil Sampling

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