平朔东露天煤矿工业场地地下水位变化影响因素分析

Analysis of influencing factors of groundwater level variation at Donglutian coal industrial ground of Pingshuo

在地下水三维流数值模型研究的基础上,采用参数灵敏度分析的方法,对东露天煤矿工业场地地下水位变化影响因素进行定量分析。结果表明,场地内强风化砂泥岩的渗透性能、填土区大气降水补给能力、盲沟排水能力对工业场地因填土引起的地下水位变化有显著影响。针对这些主要影响因素,进行工业场地各地层渗透系数研究,为完善地面排水系统,控制盲沟质量等提供有力依据,控制工业场地的地下水位上升。

On the basis of study for three-dimensional flow numerical model , The author analyzed influencing factor of variation in water level at Donglutian coal industrial ground by the parameter sensitivity analysis method. The results showed that there are several factors influence the change of ground-water level by filling , there were infiltrate performance of highly weathered sandstone, filling areas of precipitation infiltration recharge ability and blind drainage ability. In response to these main factors, author studied the permeability coefficient of all kinds of soil and rock layers, provided strong basis for improvement of surface drainage system and control quality of blind diteh. All of these approaches were to control the rise of ground water lever.