An experimental device and application method for simulating uneven settlement of buildings in goaf

Abstract

The present invention relates to an experimental device for simulating the uneven settlement of buildings in a goaf and a method for using it, including a vibrating table, H-shaped steel, an applying device, a connecting device, an encrypted steel bar component, a limit component, a data acquisition system and a vibration system, and a vibrating H-shaped steel is fixedly installed on the upper surface of the top plate on the platform. The inventive device uses a shaking table to analyze the coupling effect of earthquake and mining subsidence deformation on buildings; adjusts the height of the coal mine mining action application device, and realizes the simulation of mining subsidence deformation through the concrete frame models of four different working conditions in the laboratory. Then input the seismic wave through the shaking table, analyze the anti-seismic-anti-mining subsidence deformation performance of the model, especially the application in the cracking analysis simulation experiment of the anti-seismic performance of buildings in the mining area, and solve the problem of the gap between the coal mining action application device and the concrete pillar The material properties are quite different, and welding cannot be performed, and the coal mining action application device cannot be reused.

Description

technical field [0001] The invention relates to the technical field of cracking analysis and simulation of seismic performance of buildings in mining areas, in particular to an experimental device for simulating uneven settlement of buildings in goaf areas and a use method. Background technique [0002] With the development of the mining area economy, the ground buildings in the mining area are gradually increasing, and 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. Increase, the area of ​​mining subsidence and deformation in the mining area is also continuously expanding, and the environmental pollution problems involved should not be underestimated. If it involves the "three pressures" (under buildings, under roads and railways, under water bodies) , the harm and damage caused will be even greater, and the coal mine goaf formed after coal mining is also a grea...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an experimental device and method of use for simulating the uneven settlement of buildings in goafs. The present invention analyzes the coupling effects of earthquakes and mining subsidence deformation on buildings by using a shaking table; adjusts the coal mine mining action application device The height of the mining subsidence deformation is simulated through the concrete frame models of four different working conditions in the laboratory, and then the seismic wave is input through the shaking table to analyze the anti-seismic-anti-mining subsidence deformation performance of the model, especially when it involves the seismic resistance of buildings in the mining area The application of performance cracking analysis simulation experiments, 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, and the problem that the coal mining action application device cannot be reused

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