新疆北部某煤矿考虑采掘进度的矿井涌水量动态模拟预测

为了更为准确地模拟预测新疆北部某煤矿1号矿区在分区分层开采过程中的矿井涌水量,在分析研究1号矿区的工程地质、水文地质等详细资料的基础上,运用目前主流的地下水数值模拟软件GMS中的Modflow模块对矿井进行三维建模仿真,结合1号矿区的采掘计划和采掘进度,模拟了该矿井在采掘期(10年)的动态涌水量,同时运用矿井的实测涌水量进行了对比验证。最终将考虑采掘进度模拟预测的涌水量、未考虑采掘进度模拟预测的涌水量、大井法计算涌水量、实测涌水量进行了对比分析,结果显示考虑采掘进度模拟得到的涌水量更为接近实测涌水量,验证了考虑采掘进度模拟矿井动态涌水量方法的准确性和优越性。

Dynamic simulation and prediction of mine inflow considering mining progress in northern area of Xinjiang

In order to accurately simulate and predict the water inflow of no. 1 mining area of a coal mine in northern area of xinjiang in the process of subdivision and stratification mining.On the basis of analyzing and studying the engineering geology, hydrogeology conditions of no. 1 mine,combined with mining plan,the three-dimensional modeling was conducted by the Modflow module in the current mainstream groundwater numerical simulation software GMS.And the mine"s dynamic water inflow in the mining period (10 years) was predicted.Then matched the results to the existing mine water inflow.Finally,the water inflow predicted in consideration of mining sequence,the water inflow predicted without consideration of mining sequence, the water inflow calculated by large well method and the existing water inflow were compared and analyzed.The results show that the numerical simulation results of mine water inflow based on mining sequence are close to the actual water inflow and the accuracy of the method is verified.