东欢坨矿延深水平涌水量预测研究

摘要

Based on the analysis and understanding of hydrological conditions of the deepening level in Donghuantuo Mine, in order to ef- fectively implement the water prevention and control measures, a prediction was conducted on the water inflow quantity from the deepening level in Donghuantuo Mine. The underground water quantity and the water quality simulation software FEFLOW were applied to the simu- lation analysis on the regional field of the mine underground water and the underground mining affected to the regional underground water and to estimate the water inflow quantity of the mine deepening level. The corridor formula of the underground water dynamics was applied to calculate the simulation results of the water inflow quantity verification. The results showed that the water inflow quantity of the mine deepening level estimated with the simulation software FEFLOW was 35 852. 55 m3/d, which was close to the water inflow quantity results calculated with the corridor formula of the underground water dynamics. The error was within the allowed range. Thus the water inflow quantity estimated with the FEFLOW simulation software is accurate and reliable.%通过分析东欢坨矿延深水平水文地质情况，为防治水制定有效措施，对东欢坨矿延深水平涌水量进行预测。利用地下水水量及水质模拟软件FEFLOW对矿井地下水区域流场、地下开采对区域地下水的影响情况进行模拟分析，并预测出矿井延深水平涌水量，同时借助地下水动力学的廊道法公式计算涌水量验证模拟结果。结果表明：模拟软件FEFLOW预测东欢坨矿延深水平涌水量为35852．55m^3／d，与地下水动力学的廊道法公式计算的涌水量结果相近，误差在允许范围，说明FEFLOW模拟软件预测涌水量是准确可靠的。