摘要
为控制煤层底板突水隐患对井下采掘工作的严重威胁,采用脆弱性指数法对霍宝干河煤矿2号煤层底板突水危险性进行了评价和预测。研究表明:在干河矿区范围内,有效隔水层等效厚度从南向北逐渐变小,而太灰含水层水压却呈逐渐增大趋势,致使2号煤层底板太灰突水可能性从南向北呈递增态势。而在断层和褶皱等构造分布的区域多处于脆弱区和较脆弱区,2号煤层底板奥灰含水层突水可能性整体而言相对较小。最后,提出了对应于评价结果的煤层底板突水防控措施。
The Vulnerability Method was applied to evaluate and forecast the water inrush in 2~ndcoal seam floor at Ganhe mine,Huobao corporation with aim to control its threat to underground mining. The results show that the probability of water inrush in 2~ndcoal seam floor from limestone aquifer of Taiyuan formation increases from the south to the north at Ganhe mine area because of the effective thickness of water- resisting layer decreasing and the water pressure of limestone aquifer of Taiyuan formation increasing. What's more,the fault and fold development areas are almost in vulnerable and relative vulnerable areas. The probability of water inrush because of limestone aquifer of Taiyuan formation in 2~ndcoal seam floor is low. Finally,some countermeasures for controlling the coal seam floor water inrush were proposed.
出处
《煤》
2016年第5期1-5,9,共6页
Coal
基金
国家自然科学基金资助项目(41102180)
北京高等学校"青年英才计划"项目(YETP0932)
中央高校基本科研业务费专项基金资助项目(2009QD14)
关键词
干河煤矿
底板突水
防治
脆弱性指数法
Ganhe coal mine
water inrush in coal seam floor
control
vulnerability index method