矿区疏干地下水三维流与二维流对比研究

分别从解析解、数值解和电网络三个方面,对三维流和二维流模型求解方法和结果进行了理论分析和对比,讨论了在参数拟合、水量水位预测方面的差别及处理对策。最后给出元宝山露天煤矿疏干排水三维流模型与二维流模型的计算实例及分析,并提出了矿区大降深、大流量疏排地下水属明显的三维流过程,必需用三维流模型进行模拟计算。 

CONTRAST BETWEEN THREE DIMENSION AND TWO DIMENSION FLOW OF DRAINAGE IN COAL MINING AREA

This paper applies three methods,i.e.,analytical solution,numerical method and electrical network,to analyse and contrast three dimension and two dimension flow,and discusses the difference and handling in the parameters fitting,groundwater quantity and level forecast.Finally,authors calculate three dimension and two dimension flow models of drainage in Yuanbaoshan open pit mine,and advances that the drainage of large drawdown,large discharge is an obvious three dimension flow process and so three dimension flow model must be applied.