采矿与安全工程学报2016，Vol.33Issue(3)：403-408,6.DOI:10.13545/j.cnki.jmse.2016.03.005
中关铁矿工作面顶板突水机理及防治对策
Water-inrush mechanism and countermeasure for the roof of working face in Zhongguan iron mine
摘要
Abstract
Zhongguan iron mine is a water-contained mine attributed to Ordovician Karst water in limestone and it is threatened by water-inrush during the mine construction. In this paper, a water-inrush case at -260 m level has been studied to find out the mechanism based on the combined research of re-gional tectonic conditions and dynamic monitoring results of the underground water level. The results have shown that the water-inrush is caused by the activation of X1 buried fault and the formation of water-inrush channel. The channel contributes to building the hydraulic connection between the driving face and the aquifer after the fault evolved from water-resisting to water-conducting due to several times of roof coving led by X1 fault exposed in the tension-deformation zone under artificial mining. On the basis of the water-inrush mechanism, the countermeasures summarized as “driving with detection and driving after detection; water plugging taking the first place or with drainage together” for preventing the karst water-inrush at the roof of driving face in -260 m level are established during the mine con-struction. Thus, construction of tunnels at -260 m level under karst conditions with safety and high profi-ciency has been achieved.关键词
中关铁矿/突水/断层活化/奥陶系岩溶水/防治对策Key words
Zhongguan iron mine/water inrush/fault reactivation/Ordovician Karst water/countermeasure分类
矿业与冶金引用本文复制引用
师文豪,杨天鸿,常宏,王培涛,夏冬..中关铁矿工作面顶板突水机理及防治对策[J].采矿与安全工程学报,2016,33(3):403-408,6.基金项目
国家重点基础研究发展计划(973)项目(2013CB227902)；国家自然科学基金项目(51574059，51574060) （973）
