论文部分内容阅读
煤层采动后上覆岩体原有应力重新分配,造成采场附近的岩体破坏。当开采达到一定程度后,一般会出现覆岩导水裂隙带发育的监控问题。故导水裂隙带高度的确定是采煤工作的重点。通过对煤矿覆岩破坏探测现状的分析,详细说明了新技术的原理和方法,并进行比较。在实际生产中确定导水裂隙带高度应因地制宜,多种方法相互结合。
The original stress of overlying rock mass after coal mining is redistributed, resulting in the destruction of rock mass near the stope. When the mining reaches a certain level, the monitoring problems of water-bearing fractured zone in overlying strata generally occur. Therefore, the determination of the height of water-conducting fracture zone is the key point of coal mining. Through the analysis of the detection of overburden rock destruction in coal mines, the principle and method of new technology are described in detail and compared. In the actual production to determine the height of water-conducting fractured zone should be adapted to local conditions, a variety of methods combined with each other.