动压影响下巷道掘进断层突水机理及防治  

Mechanism and Controlling of Water-inrush from Faults under Dynamic Pressure in Roadway Drilling

作　　者：郭修杰 张明 杨永杰[2] 

机构地区：[1]山东能源临沂矿业集团有限责任公司,山东临沂276017 [2]山东科技大学矿山灾害预防控制-省部共建国家重点实验室培育基地,山东青岛266590

出　　处：《煤炭技术》2015年第5期199-201,共3页Coal Technology

基　　金：山东省自然科学基金项目(ZR2011EL019)

摘　　要：矿井断层突水是煤矿生产中的重大问题。针对田庄煤矿掘进巷道的突水问题,根据矿井水文地质条件,对断层突水机理进行了理论及数值模拟分析。分析表明:采场动压与断裂带应力集中区域相互叠加,使断层活化区和煤层底板塑性区连通,诱发导水通道的产生,奥灰水沿断层面渗流突变,造成突水。在上述分析的基础上,采取地面施工钻孔注浆进行堵水治理,取得了成功,对动压影响下断层活化突水防治具有一定的借鉴作用。Water inrush from faults is a major problem in coal mine production.For the problem of water inrush in roadway driving of Tianzhuang coal mine,according to the hydrogeological conditions,the mechanism of water inrush from faults was analyzed by using the theoretical and numerical simulation method.The results show that stress concentrated zone areas of mining and fault zone could be added together,making the fault activation areas connected to the plastic zone of coal floor,creating a water flow channel,ordovician water seepage mutations occur along fault plane,causing the accident of water-inrush.On the basis of foregoing analysis,grouting holes were drilled in the ground,and then using grouting to stop water inrush successfilly,it has important guiding significance for controlling and preventing water inrush from faults influenced by dynamic pressure.

关 键 词：突水 断层活化 数值模拟 注浆 

分 类 号：TD74[矿业工程—矿井通风与安全]