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Tech/Engineering - Geology | | English term or phrase: Split and Solid Barrel | | Metoda próbkowania gleby, jedna z najpopularniejszych metod ręcznych |
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geopiet
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| Reference: dwie różne metody
Reference information:
Split spoons are tubes constructed of high strength alloy steel with a tongue and groove arrangement running the length of the tube, allowing it to be split in half. The two halves are held together by a threaded drive head assembly at the top, and a hardened shoe at the bottom, with a beveled cutting tip. The sampler is driven by a 140-pound weight dropped through a 30-inch interval. When the split spoon is brought to the surface, it is disassembled and the core removed. Barrel samplers are similar to split spoons except they can not be taken apart. A core extruder might be required to remove the core from the barrel. - http://www.frtr.gov/site/4_2_1.html
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Note added at 2 hrs (2010-04-04 15:35:44 GMT)
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Split-spoon / SPT Sampler. Utilized in the 'Standard Test Method for Standard Penetration Test (SPT) and Split-Barrel Sampling of Soils' (ASTM D 1586[1]). This sampler is typically a 18"-30" long, 2.0" outside diameter (OD) hollow tube split in half lengthwise. A hardened metal drive shoe with a 1.375" opening is attached to the bottom end, and a one-way valve and drill rod adapter at the sampler head. It is driven into the ground with a 140 pound hammer falling 30". The blow counts (hammer strikes) required to advance the sampler a total of 18" are counted and reported. Generally used for non-cohesive soils, samples taken this way are considered disturbed.
http://en.wikipedia.org/wiki/Geotechnical_investigation
| geopiet
Native speaker of:  Polish
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