Tester for soil pressure bearing and shearing test

Abstract

The invention provides a test instrument for mechanical property of soil based on bainite instrument, i.e., a tester for a soil pressure bearing and shearing test. The tester comprises an angular displacement sensor shaft coupler, a U-shaped seat, a displacement sensor, a weight, a displacement sensor shell guide rail, a weight base, an upper sliding shaft, a pressing/twisting combined sensor, a lower sliding shaft, a shearing ring/pressing plate, an angular displacement sensor, a pair of twisting wrench gloves, a thrust ball bearing, a retainer ring, a supporting seat, a limiting bolt, a clamping lug, a shaft sleeve and a triangular support. A measuring method comprises the four steps; the pressure bearing and shearing properties of soil can be measured respectively by using the instrument; and main mechanical parameters of the soil can be obtained after an obtained pressure bearing property curve and a shearing property curve are treated. The tester is not only simple in structure and easy to operate, but also precise in measurement, easy to carry and mount and good in stability and reliability.

Description

technical field [0001] The invention relates to a tester, more specifically to a tester for soil mechanical properties based on the testing principle of a Belleville instrument—a tester for soil pressure and shear properties. It belongs to the technical field of testing equipment. Background technique [0002] The physical and mechanical properties of the soil have a great influence on the traction control performance of the vehicle. The research on the physical and mechanical properties of the soil is helpful to evaluate the road passability of the vehicle, optimize its driving performance and carry out safe path planning. In order to deeply analyze the physical and mechanical properties of the soil, it is necessary to measure the physical and mechanical parameters of the soil. The physical parameters of the soil mainly include particle size distribution, particle specific gravity, bulk density, and void ratio. Measure it and figure it out. The mechanical characteristic p...

AI Technical Summary

Problems solved by technology

There are no general-purpose instruments available for the measurement of in-situ simulated soil parameters related to the driving of the rover, and there are few related testing instruments

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