周期性开采和回灌条件下浅层地下水位变化特征研究——以天津滨海新区为例  

Variation characteristics of shallow groundwater levels under periodic pumping and recharg test: examplified by Tianjin Binhai New Area

作　　者：何国峰[1] 张云[1] 孙铁[2] 姚怡光 唐宁[1] 李雪华[1] 

机构地区：[1]南京大学地球科学与工程学院,江苏南京210046 [2]建设综合勘察研究设计院有限公司,北京100007

出　　处：《水文地质工程地质》2016年第6期27-34,共8页Hydrogeology & Engineering Geology

基　　金：国家自然科学基金面上项目(41572250)

摘　　要：针对天津滨海新区进行的周期性抽水与回灌试验,根据抽水试验计算了含水层的渗透系数和抽水的影响范围,并据此分析了抽水与回灌试验的叠加效应;根据实测数据分析了抽水回灌周期、流量、不同采灌方式等因素对地下水位埋深的影响。不论是连续式还是间歇式的周期性抽水与回灌方式,产生的地面沉降量都很小,并且间歇式周期性抽水回灌方式优于连续式周期性抽水回灌方式。试验结果表明采用周期性抽水与回灌的方法建立人工渗流场可有效减小地源热泵工程中的地面沉降。The periodic pumping and recharge test is adopted in the Tianjin Binhai new area. Based on the pumping test data, the coefficient of permeability and the extent of influence are calculated. The superimposed effect of pumping and recharge test is analyzed. The variation characteristics of groundwater level depths are obtained when different factors are considered, including the pumping and recharge period, water flow, and different ways of pumping and recharge. Whether the pumping and recharge ways are continuous or intermittent, the land subsidence is little. Moreover, the land subsidence under the intermittent way of pumping and recharge is smaller than that under the continuous way of pumping and recharge. The results show that the method of pumping and recharge is feasible to decrease the land subsidence in the ground resource heat pump engineering.

关 键 词：抽水回灌周期 连续式抽水回灌 间歇式抽水回灌 地面沉降 地源热泵 

分 类 号：P641.2[天文地球—地质矿产勘探]