工作面底板岩层破坏光纤和电法综合探查

Optical Fiber and Electrical Comprehensive Exploration of Rock Failure in Working Face Floor

判断采动过程中底板岩层破坏深度是矿井防治水害的一个关键问题,为防治水措施提供依据。本文以淮南某矿区13121上工作面底板为研究对象,利用光纤和电法两套监测系统对开采过程中煤层底板进行实时监测,对得到的岩层的变形及破坏特征数据进行处理分析,判断煤层底板岩层破坏深度。结果表明:该工作面底板岩层最破坏深度为17 m,与现场实际结果基本吻合。

It is a key problem to judge the failure depth of floor rock strata in mining process to prevent and control water disaster. In this paper, the upper working face floor of a mining area of 13121 in Huainan is taken as the research object. Two sets of monitoring systems, optical fiber and electric method, are used to carry out real-time monitoring on the coal seam floor in the mining process. The deformation and failure characteristics data of the obtained rock strata are processed and analyzed to determine the failure depth of the rock strata in the coal seam floor. The results show that the most destructive depth of the floor rock layer in this working face is 17 m, which is basically consistent with the actual field results.