一种多孔介质顶板材料预疏水相似模拟试验装置及方法
By constructing a pre-hydrophobic similarity simulation test device for porous media roof materials, the problems of uncontrollable pressure stress in pressurized water and low displacement monitoring efficiency were solved, enabling accurate simulation and risk assessment of the roof stress field during the mining of coal seams in deep water-rich strata.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF SCI & TECH BEIJING
- Filing Date
- 2024-01-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hydrophobic similarity simulation test devices cannot effectively control the pressure stress level of confined water, and the efficiency and accuracy of displacement visualization monitoring are low, making it difficult to accurately simulate the adjustment of the roof stress field during the mining of coal seams in deep water-rich strata.
A similar simulation test device for pre-hydrophobicity of porous media top plate material is designed, including a similar simulation test module, a mechanical loading module, and a monitoring data acquisition module. The model is constructed using a transparent acrylic plate, simulated rock strata, and steel profiles. Combined with a stress servo loading unit and a pressurized water loading submodule, the device achieves precise control of pressurized water and stress, and monitors displacement and water pressure data in real time through the host system.
It has achieved effective simulation of the mechanical and displacement response of porous media strata during dewatering, clarified the risks induced by dewatering in different locations of the roof, provided a reliable basis for mine water control, and improved the efficiency and accuracy of displacement monitoring.
Smart Images
Figure CN117929687B_ABST