1. Xi’an Research Institute Co. Ltd. ,of China Coal Technology & Engineering Group Corp,Xi’an　 710054,China;2. Shaanxi Key Laboratory of Coalmine Water Hazard Control,Xi’an　 710077,China

以顶板疏放水中常用的倾斜钻孔为对象,以空间点源理论为基础,运用反映法,建立了均质各向异性无限水平承压含水层中非完整倾斜钻孔的井流计算方程,讨论了多个倾斜钻孔同时工作时,多孔叠加的疏放水井流计算方法。在此基础上,运用陕北某矿顶板含水层疏放水工程实例,验证了此方法的有效性。形成了一套集分析、模拟、预测为一体的倾斜钻孔疏放水计算方法。

Water-inrush from roof is one of the most harmful hazards to coal mine construction and production. The technologies of slanted drilling and drainage have been widely used in the field of coal mine water prevention and treatment, especially in preventing and controlling the water-inrush from roof. Based on the theory of point source space,this paper derived a calculation method of the well flow caused by slanted borehole in infinite horizon confined aquifer. Superposition of infinite horizontal porous confined aquifer complete slanted bore-hole flow calculation equa- tion has been verified. A set of analysis,simulation and forecast of the coal mine roof slanted borehole drainage theory and method of water was formed. Calculation equation for slanted borehole laid a good foundation to the design of the coal mining face water discharge.

国家自然科学基金资助项目(41302214)；陕西省自然科学基础研究资助项目(2014JM2-5064)；中煤科工集团有限公司面上基金资助项目(2014MS002)；

Chen Shi,Dong Shuning,Li Jingsheng,et al. Analytical solution for slanted well in the roof of coal mine working face[J]. Journal of China Coal Society,2016,41(6):1517-1523.