论文部分内容阅读
针对石圪节煤业公司2123断层孤岛煤柱轻放工作面煤层的地质条件与顶底板的具体情况,制定了矿压观测的内容及方法,进而对工作面液压支架工作阻力、初次来压、周期来压,顶煤运移规律,巷道围岩变形进行实测分析,得到矿压显现的规律,从而为断层孤岛煤柱的成功开采提供了科学的依据。
Aiming at the geological conditions and the top and bottom conditions of coal seam 2115 fault coal pillared light coal pillar in Shijiazhuang Coal Industry Company, the content and method of rock pressure observation were worked out. Then the working resistance, initial pressure, Pressure, top coal migration law and surrounding rock deformation of roadway were measured and analyzed to get the law of occurrence of mine pressure, which provided a scientific basis for the successful mining of fault pillars.