陈四楼煤矿高承压水复杂工作面水害治理技术

Water Disaster Control Technology of Complex Working Face with High Pressure Water in Chensilou Coal Mine

陈四楼煤矿工作面受太原组岩溶裂隙承压水影响,在构造发育、承压水水压高的区域,易发生突水事故。为了确保工作面安全回采,开采出受水害严重威胁的煤炭资源,开发了一套完整的高承压水复杂工作面水害治理技术。通过对钻孔出水量、出水次数、注浆量、不同序次钻孔出水情况、灰岩出水量及注浆量分层进行研究,分析工作面的底板各层灰岩含水层富水特征,对工作面底板注浆改造水害治理工程设计、施工、评价具有重要意义。实践表明,水害治理工程效果良好,确保了工作面的安全回采。

The working face of Chensilou Coal Mine is affected by the confined water of Taiyuan Formation karst fissure.In the area of structural development and high pressure of confined water,water inrush accidents are prone to occur.In order to ensure the safe mining of working face and liberate the coal resources seriously threatened by water disaster,a complete set of water disaster control technology for complex working face with high confined water was developed.Through the study on the water output of drilling,the number of water output,the amount of grouting,the water output of drilling in different sequences,the water output of limestone and the stratification of grouting volume,the water-rich characteristics of limestone aquifers in each floor of the working face are analyzed,which is of great significance to the engineering design,construction and evaluation of water hazard control in the grouting transformation of the working face floor.Practice shows that the effect of water disaster control project is good,which ensures the safe mining of working face.