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作为研究矿压显现研究的关键环节,对巷道矿压的现场监测是揭示矿山压力显现规律的重要科学手段之一。由于试验地点埋深近900m,属于深部开采,矿压显现强烈,但从未进行过系统的矿压监测工作,而对于开采较深煤层的生产矿井来说,研究并掌握中深部煤层矿压显现规律意义重大,因为只有掌握了矿压显现规律并制定合理措施才能科学合理的做好回采和掘进期间的顶板控制工作,才能为实际生产做好技术保障,才能有效的控制和减少事故发生。通过对城山煤矿采煤工作面现场实测,在结合城山矿地质情况、围岩岩石性质、煤层赋存、开采条件的基础上,分析得出了工作面在回采前后和掘进期间的围岩压力显现规律,以及现有支护方式的优劣。
As a key part of research on the occurrence of mine pressure, on-site monitoring of mine pressure is one of the important scientific means to reveal the law of mine pressure. Due to the fact that the test site is buried at a depth of nearly 900 m and belongs to deep mining, the mine pressure has been intensely manifested. However, no systematic monitoring of mine pressure has been carried out. However, for mine production with deeper coal seams, Laws of great significance, because only grasping the law of mine pressure and develop reasonable measures to scientific and reasonable during the mining and roofing control during the excavation in order to make good technical support for the actual production, in order to effectively control and reduce the accident. Based on the field measurement of coal mining face in Chengshan Coal Mine and the combination of the geological conditions of Chengshan Mine, the rock properties of the surrounding rock, the occurrence of coal seams and the mining conditions, the pressure of surrounding rock in the working face before and after mining and excavation is revealed Law, and the pros and cons of existing support methods.