Similar material simulation test device and method

Abstract

The invention relates to a similar material simulation test device and method. The similar material simulation test device comprises a test platform, a transparent test device located on the test platform, a horizontal rotating handle located on the test platform and connected with a recovery power device, a vertical rotating handle located on the front side of the test platform and connected with an adjusting device for adjusting a coal discharge window, a cross beam used for supporting and fixing the test platform, stand columns used for supporting the cross beam, a stable bottom beam, and a transparent glass recovery device fixed to a supporting bottom beam. The similar material simulation test method includes the steps that firstly, similar simulation materials are laid; secondly, the coal discharging window is adjusted; thirdly, coal seam mining is simulated; fourthly, phenomenon observation is performed; fifthly test material are recycled.

Description

technical field [0001] The invention belongs to the technical field of mining and geotechnical engineering, and in particular relates to a similar material simulation experiment device and method. Background technique [0002] Similar material simulation is the main experimental research method in mining engineering and geotechnical engineering, which can be used to simulate and reproduce the actual coal seam mining and excavation at the engineering site, and observe the surrounding rock stress, strain and displacement under this condition. [0003] The simulation test of similar materials is simple and easy to perform, and the image is intuitive. Repeated tests can be carried out according to different mining plans. It has significant advantages in the study of rock formation migration and fracture laws in the mining process, and occupies an irreplaceable role in the research process of mining engineering problems. important position. Therefore, the laboratories of many co...

AI Technical Summary

Problems solved by technology

[0005] The existing two-dimensional similar material simulation experiment devices mainly have the following problems and deficiencies: 1. The body is bulky and bulky, and the structure is not reasonable, which hinders the test operation and observation, and the base is fixed on the ground. Once it is built, it is difficult to disassemble and move. A large number of valuable laboratory space resources; 2. Since the materials used are mainly river sand, gypsum, and large white powder, it takes a long time for the newly installed similar materials to dry, resulting in long test cycles and low test efficiency. Low; 3. The labor intensity of simulating coal seam mining is high, and the disturbance to similar simulation material models is large, so it is difficult to simulate the mining of coal seam scientifically; 4. Due to the limitation of test equipment and materials, it is not suitable for rapid simulation of coal seam mining

Images