An experimental device that is easy to connect in simulating coal mining and its use method

Abstract

The present invention is an experimental device for simulating coal mining and its application method, which includes a vibrating table, H-shaped steel, an applying device, a connecting device, an encrypted steel bar assembly and a limit assembly, and the upper surface of the top plate on the vibrating table is fixedly installed with For H-shaped steel, an application device is provided on the upper surface of the upper flange of the H-shaped steel, and the application device is specifically a jack. The inventive device is firmly combined by adding steel plates and using extended bolts, which avoids the relative displacement between the concrete frame column and the coal mining action application device, and then realizes the firm combination of the coal mine mining action application device and the base H-shaped steel. Simulate the fixed end constraints in the real working conditions, and then simulate the different working conditions of the building settlement during the coal mining process, and solve the problem that the material properties between the coal mining action application device and the concrete column are quite different, and welding cannot be performed. Problems with reusing coal mining action applicators.

Description

technical field [0001] The invention relates to the technical field of cracking analysis and simulation of anti-seismic performance of buildings in a mining area, in particular to an experimental device for simulating coal mining that is convenient for connection and a use method thereof. Background technique [0002] According to the incomplete statistics of key state-owned coal mines, at present, my country's "three under" pressure coal is about 13.79 billion tons, of which 8.76 billion tons are under the building. With the development of society and economy, the ground buildings in the mining area are still increasing gradually, and the coal mining under the buildings has become the main problem faced by many mining areas, which seriously restricts the sustainable development of the mining area. Therefore, the research on coal mining under the buildings has great significance Very important theoretical and practical significance. So far, coal-producing countries in the w...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an experimental device for simulating coal mining that is convenient for connection and its use method. The present invention combines it firmly by adding steel plates and using extended bolts, avoiding the impact of concrete frame columns and coal mine mining. The relative dislocation of the device, and then realize the firm combination of the coal mining action device and the base H-shaped steel, simulate the fixed end constraints in the real working conditions, and then simulate the different working conditions of the building settlement during the coal mining process, and solve the problem There is a large difference in material properties between the coal mining action application device and the concrete column, which cannot be welded, and the problem that the coal mining action application device cannot be reused

Images