担水沟煤矿9101工作面奥灰水突水危险性研究

宁武煤田北部平塑矿区煤矿开采受奥灰底板承压水威胁,由于奥陶系灰岩含水层富水性强、水压高、补给水源区域广、隔水层相对薄弱、区内断裂构造及陷落柱发育,致使该区煤层开采受奥灰水严重威胁。煤层开采时,对断层及陷落柱导通奥灰水的危险性分析与研究显得极为重要。文章结合担水沟煤矿9101工作面实际情况,做一些浅析。

Research on Water Inrush Risk of Ordovician Limestone Water at 9101Workface of Danshuigou Coal Mine

In coal mining of Pingshuo mine area in the northern of Ningwu Coalfield,Ordovician limestone floor with the confined groundwater have a serious threat.The Ordovician limestone aquifer which is rich in the water and have the high water pressure,the wide water supply,the weak impermeable layer with the fault structure and the subsided column are common,so the mine in this area is faced with a serious threat.The risk research on which the faults and subsided column conduct the Ordovician limestone water are extremely urgent.This paper have a simple analysis in combined with the fact of the 9101 workface in Danshuigou Coal Mine.