矿井涌水量数值法预测井筒处理方法探讨

矿井涌水量预测对于矿山开采具有重要意义。本文采用解析法和数值法计算了尕马庄矿区主、副井的井筒涌水量。重点讨论了数值法模型中井筒处理方法，通过对三种处理措施比较发现将井点作为节点，以含水层底板标高为其固定水头计算最大井筒涌水量，具有剖分简单、计算工作量小、结果较精确等优点。

A RESEARCH ABOUT WELLS TREATMENT IN THENUMERIC MODEL EMPLOYED TO CALCULATEGROUNDWATER DISCHARGE

The Prediction if pumpage from mining wells is very important for mining work.Analytical and numericmethods were employed to calculate groundwater discharge from two co-effected wells in three aquifers separaredby aquicludes with confined-unconfined flow in this paper. Three methods that deal with mining wells in FEMmodel were presented. By comparing, we found that the measurement in which mining wells as nodal points weregiven constant heads that equal the bed level of the calculated aquifer is the best because it is simple for spatialdiscrete, needs less computation time and gets more accurate result. Meanwhile, a developed iteration that wasused to calculate pumpage of two co-effected wells in a confined-unconfined aquifer with analytical method ispratical.