摘要
针对告成煤矿滑动构造特殊地质条件下顶板涌水严重问题,通过计算机模拟技术模拟开采过程中导水裂隙带发育高度。利用物探方法解决滑动构造顶板砂岩含水层富水性分布不均的问题,重点查明导水裂隙带发育高度内砂岩含水层富水性问题。为减小顶板砂岩含水层对正常开采的影响,告成煤矿采取了顶板疏水巷和疏水钻孔提前进行区域疏放的措施,并在工作面回采时采用导流钻孔进行局部疏放补充;为减少老孔积水对工作面的影响,采取了底抽巷施工导流孔和采空区预埋导流管的方法解决采空区积水问题。
Aiming at the serious roof water inrush problem effected by sliding geological structure of Gaocheng Coal Mine,this paper simulated the height of water flowing fractured zone in mining process by means of numerical simulation. By using geophysical exploration,problem such as uneven distribution of water yield property of aquifer in roof sandstones,especially when aquifer lies in water flowing fractured zone,has been solved. To reduce the influence of aquifer in roof sandstones to mining,Gaocheng Coal Mine adopted roof water discharging gateway and hydrophobic drillings to make regional water drainage in advance. Furthermore,diversion holes was used as a supplement to carry on regional water drainage during mining. For minimizing the impact to coal face caused by water accumulation,water discharging gateway and drainage tube were used to solve the problem of waterlogging in goaf.
出处
《中州煤炭》
2016年第4期30-32,37,共4页
Zhongzhou Coal
关键词
滑动构造
导水裂隙带
物探
顶板水
疏水巷
导流孔
sliding geological structure
diversion fissure zone
physical exploration
roof water
water discharging gateway
drainage tube
