Portable one-dimensional stress relaxation testing device and testing method thereof

Abstract

The invention discloses a portable one-dimensional stress relaxation testing device and a testing method thereof. The device comprises a base, wherein the base is provided with a jacking motor; the jacking motor is provided with a solidification container; two vertical rods are mounted on the two sides of the base; after the two vertical rods are fixedly arranged on the two sides of the base, a counter-force beam is mounted at the tops of the two vertical rods; a counter-force framework is commonly composed of the counter-force beam and the two vertical rods; a vertical rod is erected in the middle of the counter-force beam and is connected with a force transmission cover plate on the upper part of the solidification container. With the adoption of the portable one-dimensional stress relaxation testing device and the testing method thereof, a one-dimensional stress relaxation test can be directly carried out on undisturbed soil on the spot; meanwhile, the testing method is simple, the operability is strong; not only can testing cost and time be saved and testing efficiency be improved, but also data obtained by the test is accurate and reliable.

Description

technical field [0001] The invention relates to a portable measuring device for geotechnical tests in geotechnical engineering, in particular to a portable one-dimensional stress relaxation test device and a test method thereof. Background technique [0002] Underground soft soil foundations have strong rheological properties, such as creep and stress relaxation, and these characteristics will directly affect the stability of buildings built on soft soil foundations. At present, scholars have conducted a series of experimental studies on the rheological properties of soft soil, among which the stress relaxation test is relatively simple and time-saving. The more common stress relaxation tests include: stress relaxation tests under one-dimensional conditions, drained and undrained stress relaxation tests under triaxial conditions, and stress relaxation tests under complex stresses. At present, the above-mentioned stress relaxation tests are all carried out on conventional co...

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Problems solved by technology

At present, the above stress relaxation tests are all carried out on conventional consolidation containers or compression devices. Since they can only be operate

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