摘要
在详细分析某涌水量大、水文地质条件复杂的矿床水文地质条件的基础上,运用Visual MODFLOW建立三维地下水流数值模型,运用数值法计算了矿床涌水量,并将计算结果与"大井法"计算结果进行比较,证明数值法更为准确。提出以地表防治为主、地下治理为辅的综合防治水方案。地面防治采用排水沟、截水沟及岩溶回填的方法;地下治理采用帷幕注浆、超前探放水、及时疏干3种方法。将防治水工程模拟于该三维可视化数值模型上,并运用模型进行了防治水效果验证,结果证明防治水方案的实施将会较大幅度减小矿床地下水对采矿的威胁,减少矿坑排水及矿井水处理费用;防治水方案能够保护周围环境、保证村庄的正常生产生活。
Visual MODFLOW is used to construct three-dimension groundwater numerical model based on analyzing the geohydrologic conditions of certain mine which have big inflow of water and complicated geohydrologic conditions. A numerical method was applied to calculate water inflow of the mine. Compared with the result obtained by big well method, the result obtained by the numerical method was more accurate. A method of combining surface and underground water control was select- ed, which was based on the surface control and supplemented by underground control. To prevent the rain flow into groundwater three methods of intercepting drain,drainage ditch and karst filled on surface were used. Three methods of anti-seepage curtain, draining water immediately and pump wells were used for underground water control. The water control engineering was applied in the numerical model of this mine. The result showed that the combined method was feasible and economic . After using these water control methods, the water inflow would be dramatically reduced, the cost would be decreased, and the environment can be protected.
出处
《铀矿冶》
CAS
2011年第1期44-49,共6页
Uranium Mining and Metallurgy
