Loading assembly and experimental device for testing rock disturbance-relaxation

Abstract

The invention discloses a loading assembly comprising a supporting platform, the supporting platform is sealed and assembled with the bottom of a pressurized chamber, the pressurized chamber is assembled with the supporting platform, a liquid guiding hole is connected with one end of an oil returning pipe through a liquid guiding tube, the outlet of an oil returning pump is communicated with a third reversing valve inlet, a liquid collecting tank is inclined from right to left, the supporting platform is fixed on a supporting top plate, a sample is loaded into the pressurized chamber, a pressing block is also installed at the bottom of a loading cylinder, the pressing block is fixed on the top of a pressing shaft, the bottom of the pressing shaft is tightly assembled with the tightening inclined slope of a wedge-shaped block; the wedge-shaped block is provided with a loading threaded hole, the loading threaded hole is screwed and assembled with a screw by a thread; the two ends of thescrew are respectively provided with connecting blocks, the connecting blocks are installed in a connecting groove, the connecting groove is disposed at one end of a driving shaft, and the other end of the driving shaft passes through a fixing plate and is fixed and assembled with a turntable. The present invention also discloses an experimental device using the above described loading assembly for testing rock disturbance-relaxation. Applied disturbance force can be calculated according to the rotation angle of the turntable.

Description

technical field [0001] The invention relates to an experimental device, in particular to a loading assembly and an experimental device for testing rock disturbance-relaxation. Background technique [0002] In the fields of civil engineering and mining, it is very necessary to study the mechanical properties of rocks, which can help designers to carry out engineering design, thereby ensuring construction progress, reducing construction costs, and eliminating potential safety hazards. [0003] At present, the research on the mechanical properties of rocks mainly focuses on: tensile strength, compressive strength, confining pressure, elasticity, elastic aftereffect, disturbance, relaxation, etc., which can reflect the mechanical properties of rocks from various aspects. So as to provide effective reference or research for designers. [0004] There are related testing devices in the prior art, such as a rock disturbance generating mechanism and its relaxation-disturbance compre...

AI Technical Summary

Problems solved by technology

[0004] There are related testing devices in the prior art, such as a rock disturbance generating mechanism and its relaxation-disturbance comprehensive experimental device recorded in the Chinese invention patent application with the publication number CN107221236A. However, when this device is actually used, it can The perturbation force performed is relatively small, which cannot meet the requirements in the perturbation experiment that requires a large force

Moreover, it uses instantaneous impact for disturbance, which cannot meet the needs of experiments that require a long disturbance time.

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