Device and method for anti-dip collapse similar simulation tests on cover rock below slide structural belts

Abstract

The invention discloses a device and a method for anti-dip collapse similar simulation tests on cover rock below slide structural belts. The device comprises a support, a base, a left upright plate, a right upright plate, a support column, a left fixed bottom plate, a right fixed bottom plate, a left movable bottom plate, a right movable bottom plate, a left cushion block, a right cushion block, transparent protective plates and formed building blocks. The method for the similar simulation tests includes that simulation coal seams are excavated, accordingly, roofs of gobs can naturally collapse, stress on the rock starts to change, the rock gradually moves, earth surfaces are gradually affected, all change of the stress can be reflected onto computers via stress sensors, change of movement of the rock can be observed by the aid of total-station instruments and digital photography processes, and uncertain conditions that simulation rock strata do not collapse, are difficult to collapse or completely collapse and the like in the traditional tests can be prevented in integral procedures. The device and the method have the advantages of simplicity in operation, low amount of labor, reusability and the like. Besides, angles of the device can be freely changed, so that requirements of the simulation tests on extraction of coal below various slide structures can be met.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to a similar simulation test device and method for overburden collapse under a sliding structure belt. Background technique [0002] In order to better ensure the safe production of underground mines, maximize the exploitation of mineral resources, protect the mining environment and ground facilities, it is necessary to study the mine pressure and the law of rock formation activity, and develop rock formation support technology and control measures. This is an eternal task of mining science. important theme. [0003] For a mechanical problem with many influencing factors, complex physical process, and serious human disturbance, it is difficult for people to understand all the factors affecting the problem clearly, and it is impossible to accurately obtain the constitutive relationship describing the stress-strain relationship of the rock mass. It is impossible to carry o...

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