田家河钒矿矿床水文地质条件分析及矿坑涌水量预测研究
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摘要
通过系统分析田家河钒矿的水文地质条件和主要充水因素,认为大气降水、底板震旦系灯影组白云岩岩溶裂隙含水层和顶板寒武系中统岳家坪组白云岩岩溶裂隙含水层是未来影响矿坑充水的主要因素,各充水含水层富水性强,补给条件好,水文地质条件复杂,顶底板隔水层厚度薄且不连续,未来在矿山开采影响下将失去隔水作用,地下水向矿坑直接充水。结合开发利用设计,建立了各充水因素的涌水量预测模型,预测了矿坑正常和最大涌水量分别为40 199.76 m~3/d和100 395.69 m~3/d。针对充水因素,提出应以堵为主,堵疏结合综合防治的建议,为矿山开发利用设计提供依据。
Through systematically analyzes the hydrogeological conditions of the Tianjiahe vanadium mine and the main water-filling factors, It is believed that the atmospheric precipitation, the Sinian dynasty Dengying Formation dolomite karst fissure aquifer and the top Cambrian Zhongtong YueJiaping Formation dolomite karst fissure aquifer are the main factors affecting the filling of the pit in the future, and the water-bearing aquifers are rich in water. The recharge conditions are good, the hydrogeological conditions are complex, and the thickness of the aquifer in the top and bottom plates is thin and discontinuous. In the future, under the influence of mining, the water-blocking effect will be lost, and the groundwater will directly fill the pit. Combined with the development and utilization design, the water inflow prediction model of each water-filling factor was established, and the normal and maximum water inflow of the pit were predicted to be 40 199.76 m~3/d and 100 395.69 m~3/d, respectively. In view of the water-filling factor, it is suggested that the main prevention should be based on blocking, combined with blocking and comprehensive prevention and control, and provide a basis for mine development and utilization design.
Through systematically analyzes the hydrogeological conditions of the Tianjiahe vanadium mine and the main water-filling factors, It is believed that the atmospheric precipitation, the Sinian dynasty Dengying Formation dolomite karst fissure aquifer and the top Cambrian Zhongtong YueJiaping Formation dolomite karst fissure aquifer are the main factors affecting the filling of the pit in the future, and the water-bearing aquifers are rich in water. The recharge conditions are good, the hydrogeological conditions are complex, and the thickness of the aquifer in the top and bottom plates is thin and discontinuous. In the future, under the influence of mining, the water-blocking effect will be lost, and the groundwater will directly fill the pit. Combined with the development and utilization design, the water inflow prediction model of each water-filling factor was established, and the normal and maximum water inflow of the pit were predicted to be 40 199.76 m~3/d and 100 395.69 m~3/d, respectively. In view of the water-filling factor, it is suggested that the main prevention should be based on blocking, combined with blocking and comprehensive prevention and control, and provide a basis for mine development and utilization design.
引文
[1]湖北省郧县田家河矿区钒矿详查报告.河南省有色金属地质矿产局第三地质大队.2011.12.
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[3]薛禹群,等.地下水动力学.地质出版社.1997.
[4]吴慧芳,段云水,等.采用“下三带”理论计算法开采受承压水威胁煤层的探讨.煤炭企业管理.2002.6.
[5]国家技术监督局.矿区水文地质工程地质勘探规范.1991.10.
[2]陈崇希,等.地下水动力学.地质出版社.1999.
[3]薛禹群,等.地下水动力学.地质出版社.1997.
[4]吴慧芳,段云水,等.采用“下三带”理论计算法开采受承压水威胁煤层的探讨.煤炭企业管理.2002.6.
[5]国家技术监督局.矿区水文地质工程地质勘探规范.1991.10.