针对在地下水资源评价中入渗补给量采用经验估算存在较大误差的问题，以神东矿区为例，在广泛调查矿区包气带岩性结构并结合野外取样、室内参数测定的基础上，采用数值模拟的方法建立包气带水分运移数值模拟模型，定量模拟矿区内不同地段降雨入渗强度，探讨影响降雨入渗强度的主要因素，计算得出研究区降雨入渗系数大致在0.18～0.27，分析认为影响降雨入渗强度的因素有降雨量、潜水埋深、包气带岩性等。其中在研究区广泛分布的风积沙对地下水资源起到了一定的保护作用。%In allusion to the inaccuracy existed in empirical estimation of the recharge from rainfall infiltration, A research had been car-ried out in Shendong mining area. Based on broad inquiry of aeration zone lithologic structure in the mining area, combined with field sampling, laboratory parameter measurement carried out aeration zone moisture migration numerical simulation modeling. Quantitative-ly simulated rainfall infiltration intensity, discussed main factors impacting the intensity, estimated rainfall infiltration coefficient ap-proximately at 0.18~0.27 in the study area. Analysis has considered that factors impacting rainfall infiltration intensity have rainfall rate, phreatic water buried depth, aeration zone lithology etc. Furthermore, the eolian sand is widely distributed in the study area has played a certain protective effect for groundwater resources.
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