大气降水对承压型地下水库水资源调蓄的影响分析

Influence of Precipitation on Regulation of Confined Groundwater Reservoirs

地下水库作为一种"环保型水资源开发工程"越来越受到人们的关注,而目前建设的地下水库多以潜水含水层作为调蓄目标含水层,对于承压型地下水库的研究相对较少。定量化研究大气降水对承压型地下水库水资源调蓄的影响成为承压型地下水库规划建设的一个研究问题。本文在介绍地下水库及其水资源调蓄的基础上,以大庆市西部地下水库为例,运用地下水流数值模拟方法定量研究了大气降水对承压型地下水库水资源调蓄的影响程度,研究表明,大气降水对该地下水库水资源调蓄的影响很小,在进行地下水库调蓄运转模型的设计时,可将多年平均降水入渗补给量作为该地下水库库区所接受的大气降水入渗补给量。

As a kind of green water resources development, groundwater reservoirs have attracted more and more attention. However, phreatic water aquifer is only taken as object aquifer of most present groundwater reservoirs, research on confined groundwater reservoir is relatively poor. Quantitative research on influence of precipitation on confined groundwater reservoir regulation has become a research point for groundwater reservoir planning. Based on introduction to groundwater reservoir and its regulation and storage, quantitative research on influence of precipitation on deep groundwater reservoirs was made by using the numerical simulation method, with a groundwater reservoir in the west of Daqing as a study case. The results show that there is only a little influence of precipitation on the groundwater reservoir and average precipitation over years can be used in designing of confined groundwater reservoir regulation and storage model.