摘要
以长冲河铝土矿区大岩矿段为研究对象,通过对该区水文地质条件以及矿区内的含水层、隔水层水文地质特征的分析,在矿区内的主要地层进行了抽水试验,并针对拟实施开采方案运用水均衡法、大井法和水文地质比拟法预测矿坑涌水量,为矿区下一步开采方案设计提供直接依据。3种方法的涌水量预测值为:水均衡法(Qmax)19 794.75 m3/d、大井法(Q)2 195.38 m3/d、水文地质比拟法(Qmax)7 327.92 m3/d。这3种方法在对研究区边界的概化、水文地质参数及富水性的处理上较为粗略,并且缺乏整体和动态的结果反映,但水文地质比拟法对水位降深、富水性等参数进行了修正,在一定程度上提高了计算精度,故选择最合理的矿坑最大涌水量为7 327.92 m3/d。
From dayan ore section of Changchonghe bauxite mine in Guizhou,based on the analysis of hydro-geological conditions,hydrogeological characteristics of aquifer and aquicludein the mining area,the pumping tests for the main strata were done.For the mining plan,through the water balance method,large well method, and hydrogeologic analogy method,the water inflow was calculated.The result will provide a direct basis for the next step for mining exploration program.The three method predictive values are:water balance method (Qmax)19 794.75 m3/d,big well method (Q)2 195.38 m3/d,and hydrogeologic analogy method (Qmax) 7 327.92 m3/d.From the macro point of view,these three methods are not perfect for the study area boundary generalization,hydrogeological parameters and rich water treatment,and lack overall and dynamic result re-spone.But based on hydrogeological analogy method,the parameters of drawdown and rich water can be modi-fied.To some extent,the calculation accuracy is improved.Therefore,the choice of most reasonable water in-flow of mine is 7 327.92 m3/d.
出处
《桂林理工大学学报》
CAS
北大核心
2014年第3期460-465,共6页
Journal of Guilin University of Technology
基金
中国铝业贵州分公司科研项目(中铝勘[2009]016)
关键词
岩溶地下水
涌水量
大井法
水均衡法
水文地质比拟法
长冲河铝土矿
karst groundwater
water inflow
water balance method
big well method
hydrogeologic analogy method
Changchonghe bauxite mine
