Computer-aided pressuremeter tests

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Journal titleGeotechnical Testing Journal
Pages99103; # of pages: 5
Subjectpressure meters; computer applications; pressure tests; field tests; computers; drill holes; transducers; servo-mechanism; computerized soil testing; in situ tests
AbstractA 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.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number23614
NPARC number20375428
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Record identifier893b57be-8aff-4d69-9554-a6a97829c961
Record created2012-07-23
Record modified2016-05-09
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