煤矿“三软”地层巷道矿压观测及二次支护预留量确定  

Observation of Coal Mine "Three-soft" Formation Roadway Rock Pressure and Secondary Supporting Reserved Amount Determination

作　　者：王治泉[1] 

机构地区：[1]保利能源控股有限公司,北京100010

出　　处：《煤矿安全》2015年第10期225-227,共3页Safety in Coal Mines

摘　　要：通过对山东龙口矿区地质条件进行全面了解,得知此矿区属典型的"三软"地层。根据"三软"地层的特点,通过矿压监测及规律分析,得出巷道变形规律,在此基础上确定合理的二次支护放压空间预留量,有效保护二次支护钢架,减少巷道返修率,降低巷道支护成本。实现了在保证安全的前提下尽量降低成本的目标。Through a comprehensive understanding of Shandong Longkou Mining Area geological conditions,we learned that this mining area is a typical ＂ three soft＂ formation. According to the characteristics of the ＂ three soft＂ formation,the laws of roadway deformation are obtained by mine pressure monitoring and laws analysis,then a reasonable reserved amount of pressure release space of secondary supporting is determined. The secondary support steel will be protected effectively,the failure rate of roadway will be lower and the cost of roadway support will be cut down. The cost will be cut down on the premise that the safety can be guaranteed.

关 键 词：“三软”地层 矿压观测 二次支护 预留量 巷道支护 

分 类 号：TD353[矿业工程—矿井建设]