Portable rock structure surface direct shearing tester

Abstract

A portable rock structure surface direct shearing tester effectively solves the problems of bulkiness, long test time, large cost, long working period and difficulty in operation of apparatuses, adopts the lever principle to avoid adoption of a hydraulic device, and adopts rocks as a main test target. The tester has the advantages of realization of direct shearing test of a rock structure surface, simplicity, easiness in implementation, convenience in operation, short test cycle and low cost. The tester comprises a platform, a loading rate protection device, a shearing rate loader, a sensor fixing rack, a normal displacement sensor, a line, a normal displacement sensor line, a shearing strain sensor, a load sensor line, a pressurization crossbeam, a force transmission plate, a shearing box, a shearing box upper disc, a shearing box lower disc, a rock sample, a rock sample upper disc, a rock sample lower disc, a structure surface, rollers, a load sensor, a rear butting seat, a lever adjusting shaft, a balance weight, a lever part, a counterweight, a hook, a support, a shearing displacement sensor, a force transmission rack, a collecting system, a collecting device and a pinhole.

Description

technical field [0001] The invention relates to a portable rock mass structural surface direct shear tester and its testing method, which is a new type of portable structural surface direct shear instrument suitable for obtaining structural surface shear strength parameters and deformation parameters in rock mechanics tests, belonging to rock mechanics experimental field. Background technique [0002] Weak bedding zone is a banded distribution of rock strata whose physical and mechanical properties are weaker than that of surrounding rock, including weak interlayers, fault fracture zones, and intralayer dislocation zones, etc., and structural planes belong to weak bedding zones, so their It has a great influence on the strength of rock mass. Therefore, the structural plane is an important topic for domestic and foreign scholars to study. [0003] At present, the research on the structural plane of rock mass at home and abroad mainly adopts the direct shear test, and the sh...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems of bulky rock mass structural surface instruments, long test time, high cost, long construction period, and difficult operation, the invention provides a portable rock mass structural surface direct shear tester and its testing method, which effectively solves the problem of bulky instruments. , the test takes a long time, the cost is large, the construction period is long, and the operation is difficult. At the same time, the present invention adopts the principle of leverage to avoid the use of hydraulic devices and the main test object of the instrument of the present invention is rock

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