桂林理工大学学报
桂林理工大學學報
계림리공대학학보
JOURNAL OF GUILIN UNIVERSITY OF TECHNOLOGY
2014年
3期
460-465
,共6页
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
巖溶地下水%湧水量%大井法%水均衡法%水文地質比擬法%長遲河鋁土礦
암용지하수%용수량%대정법%수균형법%수문지질비의법%장충하려토광
karst groundwater%water inflow%water balance method%big well method%hydrogeologic analogy method%Changchonghe bauxite mine
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)19794.75 m3/d、大井法(Q)2195.38 m3/d、水文地质比拟法(Qmax)7327.92 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7327.92 m3/d。
以長遲河鋁土礦區大巖礦段為研究對象,通過對該區水文地質條件以及礦區內的含水層、隔水層水文地質特徵的分析,在礦區內的主要地層進行瞭抽水試驗,併針對擬實施開採方案運用水均衡法、大井法和水文地質比擬法預測礦坑湧水量,為礦區下一步開採方案設計提供直接依據。3種方法的湧水量預測值為:水均衡法(Qmax)19794.75 m3/d、大井法(Q)2195.38 m3/d、水文地質比擬法(Qmax)7327.92 m3/d。這3種方法在對研究區邊界的概化、水文地質參數及富水性的處理上較為粗略,併且缺乏整體和動態的結果反映,但水文地質比擬法對水位降深、富水性等參數進行瞭脩正,在一定程度上提高瞭計算精度,故選擇最閤理的礦坑最大湧水量為7327.92 m3/d。
이장충하려토광구대암광단위연구대상,통과대해구수문지질조건이급광구내적함수층、격수층수문지질특정적분석,재광구내적주요지층진행료추수시험,병침대의실시개채방안운용수균형법、대정법화수문지질비의법예측광갱용수량,위광구하일보개채방안설계제공직접의거。3충방법적용수량예측치위:수균형법(Qmax)19794.75 m3/d、대정법(Q)2195.38 m3/d、수문지질비의법(Qmax)7327.92 m3/d。저3충방법재대연구구변계적개화、수문지질삼수급부수성적처리상교위조략,병차결핍정체화동태적결과반영,단수문지질비의법대수위강심、부수성등삼수진행료수정,재일정정도상제고료계산정도,고선택최합리적광갱최대용수량위7327.92 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.