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Apparatus for Extraction of Undisturbed Samples on Noncohesive Subsoils
Author(s) -
Schuh W. M.
Publication year - 1987
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1987.03615995005100060050x
Subject(s) - barrel (horology) , geology , tube (container) , core sample , extraction (chemistry) , mineralogy , core (optical fiber) , materials science , composite material , chromatography , chemistry
A sampler was designed and tested for extracting 60‐ by 53‐mm (length by depth) undisturbed core samples from subsoils. The sampler consists of a sample cylinder “barrel,” and an “adaptor block” for fitting the barrel to the end of a 76.1‐mm o.d. hydraulic probe tube. Samples are taken by augering to the desired depth, and using the tube and sampler assembly to extract the sample. The tube and sampler assembly can also be used with a protective steel anvil to remove samples in shallow subsoils without a hydraulic probe. Samples on sands have been taken as deep as 2.5 m using the hydraulic probe, and as deep as 0.61 m using the anvil and maul method.