神东矿区降雨入渗补给强度研究

神东矿区煤炭资源开发与水资源短缺矛盾的日趋严重,实现地下水资源可持续开发利用,为能源基地建设与开发提供水资源保障迫在眉睫。而实现此目标的前提是准确的计算和评价现有的水资源。研究表明,区域地下水循环方式主要以垂向交换为主,作为地下水资源评价中补给量的主要构成部分,对该研究区降雨入渗量的研究具有十分重要的意义,以前评价地下水资源量时对降雨入渗量的给出大多采用经验估算的方法,此方法存在较大误差。在广泛调查神东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,采用数值模拟工具建立研究区包气带水分运移数值模拟模型,定量模拟神东矿区内不同地段降雨入渗强度,得出入渗补给系数,为评价区域地下水资源量提供科学依据,拟合出的研究区各岩性水文地质参数也可用于类似区域的水文地质计算。

Research on rainfall infiltration intensity in Shendong mining area

With the coal resource development in Shendong mining area, The shortage of water resource is gradually clear, it is urgent to achieve the sustainable development and utilization of underground water resource, and to realize the target need to calculate and assess of the currently water resource exactly. Some research results have showed that, The groundwater circulation is dominated by vertical exchange in research area, The rainfall infiltration intensity is used to get by empirical method, and the result may be incorrect. In this paper, We establish the water movement of numerical simulation model by the methods of numerical simulation which is based on field sampling and laboratory testing. Calculate the rainfall infiltration and the coefficient of recharge from precipitation. It also can provide a scientific guide for the evaluation and protection of groundwater resources in this area. And the soil hydraulic parameters ob- tained in this research can be used to hydrogeology calculations in similar area.