Similar material simulation test table for CT scanning

Abstract

The invention discloses a similar material simulation test table for CT scanning, which is characterized by comprising a control and data processing system, a test box body, a scanning system and an electric heating excavation system. According to the test table, a paraffin granular material serves as a coal seam similar material, and by virtue of the electric heating excavation system, the paraffin granular material is melted by using electric heating wires for heating, so that the excavation process of a working face can be effectively simulated, and the labor can be saved; and by virtue of heating layer by layer through paving multiple layers of electric heating nets, effective simulation of layer mining of thick coal seams can be realized. Meanwhile, in the simulated mining process, the scanning system can be used for performing CT scanning on a coal-rock mass model to acquire section images of model overlying strata movement, deformation and damage, and a CT image three-dimensional reconstruction technology is combined so as to realize output of three-dimensional images of overlying strata space configuration. The test table is convenient in operation, can realize effective observation of space configuration characteristics of overlying strata, and is favorable for deeply and comprehensively mastering movement and deformation rules of the overlying strata.

Description

technical field [0001] The invention belongs to the field of simulation test research of similar materials in mining and geotechnical engineering, and in particular relates to a CT scanning similar material simulation test bench. Background technique [0002] In the production process of the coal mine industry, the movement and deformation laws of the overlying rock in the stope can provide theoretical guidance for the stope support and the prevention and control of mine disasters such as gas and fire, and are of great significance for the safe and efficient mining of coal seams. Similar material simulation is an important research method for mining and geotechnical engineering to study the movement and deformation of overlying rock in the stope. However, most of the existing simulation test benches for similar materials are in the form of two-dimensional planes, which can only show the characteristics of overlying rock movement and failure in a certain section, and due to t...

AI Technical Summary

Problems solved by technology

However, most of the existing simulation test benches for similar materials are in the form of two-dimensional planes, which can only show the characteristics of overlying rock movement and failure in a certain section, and due to the boundary effect of the model, the experimental phenomena and data are different from the actual situation. larger

The operation process of a small number of 3D similar simulation test benches faces many difficulties. First, the 3D model is difficult to excavate when simulating coal seam mining, and it is even more difficult to simulate the common thick coal seam layered mining.

The most difficult point is that the traditional three-dimensional similar simulation test bench cannot observe the movement and deformation characteristics of the rock mass inside the model, and thus cannot deeply understand and overall grasp the movement form of the overlying rock in the stope

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