Pressure applying component and experimental device using same for testing elastic aftereffect of rock

Abstract

The invention discloses a pressure applying component. The pressure applying component comprises an outer cylinder hermetically assembled with a fixed sealing ring, wherein the interior of the outer cylinder is successively provided with a first conductive block, a spacer ring, a resetting member, a limiting platform and a second guide block from left to right; the first conductive block is provided with a conductive convex column; the second guide block is provided with an electricity take-off barrel; the conductive convex column can be assembled with the electricity take-off barrel for conduction of electricity; a first wire is connected with one end of the electricity take-off barrel for conduction of electricity; an electricity take-off column and the conductive convex column are fixedly assembled; a second wire is connected with one end of an electricity take-off wire for conduction of electricity; the electricity take-off wire is connected with an electricity take-off piece located on the inner side of the electricity take-off column for conduction of electricity; the electricity take-off piece is fixed in the inner electricity take-off tube of the electricity take-off barrel; and a resetting member is used for pushing a second conductive block rightward. The invention also discloses an experimental device using the above-mentioned pressure applying assembly for testing the elastic aftereffect of rock. The experimental device of the invention can carry out disturbance, relaxation and uniaxial pressurization on a sample and detect the elastic aftereffect of the sample;and in practice, the experimental device can detect most parameters in current mechanical research on rock.

Description

technical field [0001] The invention relates to an experimental device, in particular to a pressure applying component and the experimental device for testing the elastic aftereffect of rock. 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-di...

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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.

[0005] In addition, there is currently no experimental device for elastic aftereffects in rock experiments. The current conventional method is to use relaxation to study the elastic aftereffects of rocks, but the research results obtained in this way are not accurate.

For a long time, researchers have largely not studied the elastic aftereffect of rock

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