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Computer-aided pressuremeter tests

From National Research Council Canada

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  1. National Research Council of Canada
FormatText, Article
Subjectpressure meters; computer applications; pressure tests; field tests; computers; drill holes; transducers; servo-mechanism; computerized soil testing; in situ tests
Abstract
A completely portable computer-controlled servo-mechanism designed for use with the Cambridge self-boring pressuremeter consists of a computer, a data acquisition system (DAS), and an electric-to-pneumatic (E/P) transducer. The computer obtains information on the current state of a test through the DAS and determines the next step in accordance with prescribed test conditions. An appropriate voltage is then sent to the E/P transducer, which regulates in proportion to the voltage received the pressure for expanding the pressuremeter. At present, four test conditions are programmed: a controlled stress increment test, a controlled strain rate test, a controlled strain test, and a cyclic test. Experience with different soils shows that the mechanism operates to design specifications.
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  • Geotechnical Testing Journal 7, no. 2 (June 1984): 99–103.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1222
NRC numberNRCC 23614
NRC-IRC-324
NPARC number20375428
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Record identifier893b57be-8aff-4d69-9554-a6a97829c961
Record created2012-07-23
Record modified2024-03-22
Date modified: