Experimental device for testing rock disturbance-delayed elasticity

Abstract

The invention discloses an experimental device for testing rock disturbance-delayed elasticity; the experimental device comprises a base assembly, a first partition plate is fixed on the top of the base assembly, the first partition plate is fixedly provided with a first vertical plate, a second vertical plate, a third vertical plate, a fourth vertical plate and a fifth vertical plate, and the tops of the first vertical plate, the second vertical plate, the third vertical plate, the fourth vertical plate and the fifth vertical plate are fixedly assembled with a second partition plate; two sixth vertical plates are fixed on the second partition plate, and a third partition plate is fixed on the top of the sixth vertical plate; the first vertical plate is fixedly assembled with the end of apressurized oil cylinder, the pressurized oil cylinder passes through the second vertical plate and is fixedly assembled with the second vertical plate; a pressurized telescopic shaft of the pressurized oil cylinder passes through the third vertical plate, and is fixedly assembled with pressure applying components, the pressure applying components are disposed on a loading component; the number ofthe pressure components is two, the pressure applying components are respectively distributed on both sides of the loading component, and one pressure applying component is fixedly assembled with oneend of the disturbance shaft of a disturbance component. The experimental device can detect a sample in the aspects of disturbance, relaxation, uniaxial pressure applying and delayed elasticity.

Description

technical field [0001] The invention relates to an experimental device, in particular to an experimental device for testing rock disturbance-elastic aftereffect. 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 comprehensive experi...

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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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