【摘要】 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,在分析矿区地勘资料的基础上,运用GMS地下水数值模拟软件对矿井进行三维建模仿真,结合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,并与大井法计算涌水量和矿井实测涌水量进行了对比分析。结果表明:①在开采新的工作面时,采掘初期需将地下水水位迅速降至安全开采高度,因此涌水量较大,后期随着疏水稳定涌水量慢慢下降至平稳;②随着采掘工作面和采掘深度的不断扩大,矿区总涌水量逐年上升,在向新采区过渡时由于安全开采高度下降,涌水量短期增幅较大,之后随着开采的推进涌水量增幅下降并趋于平稳;③最终计算得到考虑采掘进度的各采区稳定涌水量为北一采区211m~3/d,北二采区613m~3/d,北三采区563m~3/d,与实测涌水量最大误差为7.58%,未考虑采掘进度计算涌水量和大井法计算涌水量最大误差分别为17.37%和23.23%,证明考虑采掘进度计算涌水量更为准确合理。更多还原

【Abstract】 In order to accurately simulate and forecast the mine water inflow of No.1 mining area in northern Xinjiang in the process of mining,using the groundwater numerical simulation software GMS to carry on the three-dimensional modeling simulation to the mine based on the geological exploration data.Combined with the mining plan and the mining schedule,the dynamic water inflow in the mining period(10 years)is simulated and compared with the calculation of water inflow by big well method and the measured mine water inflow.The results show that when start mining the new working face,the groundwater level should be rapidly reduced to the safe mining height in the initial stage of mining,so the water inflow is large,and then gradually decreases to a stable level with the hydrophobic stability in the later stage.With the continuous expansion of mining face and mining depth,the total water inflow in the mining area increases year by year.In the transition to the new mining area,due to the decrease of safe mining height,the water inflow increases greatly in the short term,and then tends to be stable with the advance of mining.According to the final calculation,the simulated water inflow considering the mining progress is 211 m~3/d in the north1 mining area,613 m~3/d in the north 2 mining area and 563 m~3/d in the north 3 mining area.The maximum error between the calculated value and the measured water inflow is 7.58%.And the maximum errors of calculation water inflow without considering the mining schedule and calculation water inflow with big well method are 17.37% and 23.23%.The results show that calculation water inflow considering the mining schedule is more accurate and reasonable.更多还原