压采条件下地下水位恢复对沈阳市地下工程安全影响分析  

The Impact of Water Table Recovery by Reducing Groundwater Abstraction on Underground Project Safety in Shenyang City

作　　者：杜守营[1] 袁文真[1] 杜尚海[1] 马平亮[1] 

机构地区：[1]吉林大学地下水资源与环境教育部重点实验室吉林大学水资源与环境研究所,长春130021

出　　处：《中国农村水利水电》2013年第5期20-24,共5页China Rural Water and Hydropower

基　　金：环保公益性行业科研基金重大项目(201009009)

摘　　要：在分析了沈阳市水文地质条件的基础上,建立了地下水流二维数值模型,并对不同压采条件下地下水流场及降落漏斗的变化进行预测。结果显示,合理压采地下水能够有效减缓区域地下水位下降及降落漏斗扩大等问题,但过分限制地下水开采会导致地下建筑渗水或被淹等新的环境地质问题。分析表明可安全开采时间与压采比例呈对数关系,通过二者的对数回归曲线可进一步推求规划期内地下水资源的安全压采比例,在保障地下工程安全水位埋深的条件下,实现区域地下水位的顺利恢复。Based on the analysis of the hydrogeological condition of the Hunhe Rivers alluvial and flood fan, this research establishes the two dimensional numerical model of the groundwater, and then predicts the groundwater flow field and depression cone changes under different compressive exploitation conditions. The result indicates that= compressing reasonably the exploitation of groundwa ter can effectively retard the declining of region groundwater level and the cone of depression to expand, while restricting the exploi- tation excessively will result in new environmental geological problems, such as the underground buildings to be permeated or flooded and so ou. An analysis shows that the time for secure exploitation and compressive ratio present a logarithmic relation, through the logarithmic re gression curve, we can further ascertain the safety groundwater compressive ratio during the planning period. In ensuring the safety water depth of underground engineering conditions, the recovery of regional underground water level is achieved successfully.

关 键 词：地下水降落漏斗 压采 预测 安全水位 

分 类 号：P641.8[天文地球—地质矿产勘探]