Normal fault physical simulation test device and method for coal and gas outburst simulation test

Abstract

The invention discloses a normal fault physical simulation test device and method for a coal and gas outburst simulation test. The device comprises two baffle plates, each baffle plate is formed by connecting at least two telescopic baffle plates up and down, and the two adjacent telescopic baffle plates at the upper and lower sides are connected through a foldable connection structure. The foldable connection structure comprises spherical flanges and ball socket grooves which are arranged at the upper ends and the lower ends of the telescopic baffle plates respectively, the two oppositely-arranged telescopic baffle plates are connected through at least two adjustable transverse supports, the adjustable transverse supports are telescopic rods, the two ends of each adjustable transverse support are provided with spherical ends respectively, the telescopic baffle plates are provided with ball sockets corresponding to the spherical ends respectively, the ball sockets of the telescopic baffle plates on the left side and the right side are symmetrically arranged, and the spherical ends are inserted into the ball sockets and can rotate in the ball sockets. The possibility that the simulated coal seam and the normal fault are manufactured together is achieved, the influence of disturbance generated by first manufacturing and second manufacturing is avoided, and the degree of similarity between the manufactured simulated coal seam containing the normal fault and actual occurrence is high.

Description

technical field [0001] The invention relates to the technical field of coal and gas outburst simulation tests, in particular to a normal fault physical simulation test device and method for coal and gas outburst simulation tests. Background technique [0002] Coal and gas outburst is an extremely complex dynamic phenomenon in the underground mining process of coal mines, which seriously threatens the safe production of coal mines. Although scholars at home and abroad have unified their understanding of coal and gas outburst mechanisms into a comprehensive hypothesis, and realized that outburst itself is a mechanical process that releases energy and destroys coal, due to the complexity of coal and gas outburst, in order to further improve coal and gas outburst Quantitative research is still needed on the mechanical mechanism and process of coal and gas outburst and the prevention level of gas outburst. Limited by the danger and occurrence conditions of coal and gas outburst,...

AI Technical Summary

Problems solved by technology

However, the existing normal fault simulation test devices are mostly composed of bases, columns, and boxes. Compared with the sealed box of the coal and gas outburst test device, the size is huge, so it cannot be applied to the sealed box, and the manufacturing method and process cannot meet the requirements of the sealed box. Coal seam layered suppression production and outburst similar requirements for volume simulation, so a normal fault simulation test device and its realization method for coal and gas outburst simulation test are needed

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