2016年7月上 施工技术 第45卷第13期 CONSTRUCTION TECHNOLOGY 41 D0I:10.7672/5j52016130041 基坑工程降水回灌适宜性分级研究 王国富，唐卓华，李罡，路林海，徐帮树2 (1.济南轨道交通集团有限公司，山东济南250101；2.山东大学土建与水利学院，山东济南250061) [摘要]基坑工程开挖前后采用的降水措施除易使地下水资源短缺程度加剧外，还易使地层土体发生变形，危及邻 近建筑物的安全.回灌是把抽出的地下水回补到地下含水层，既有利于补充地下水资源，又有利于控制因降水引 发的土体变形，可最大限度地减少降水对邻近建筑物的影响.以回灌水质、建筑物距离基坑远近、风险损失等级、 含水层透水性以及基坑降水量与含水层储水量之比为评价指标，利用矩阵评价法对基坑降水回灌的适宜性进行了 分级，结果表明：矩阵评价法可以有效地评价深基坑开挖的回灌适宜性. [关键词]地下工程：深基坑：回灌：分级；矩阵评价法 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2016)13-0041-04 Suitability Classification of Groundwater Recharge in Deep Foundation Excavation Wang Guofu' Tang Zhuohua' Li Gang' Lu Linhai' Xu Bangshu2 (L.Ji nan Rail Transit Group Co. Lid. Ji'nan Shandong250101 China;2.School of Civil Engineering Shandong University Ji'nan Shandong 250061 China) Abstract:Dewatering in deep foundation excavation may intensify the shortage degree of groundwater resource as well as to cause the deformation of strata and endanger the safety of adjacent buildings.In deep foundation excavation project recharge that is inject the pumped groundwater into aquifer it could be helpful to supplement the water resource control the strata deformation and decrease the dewatering influence on adjacent buildings.Taking recharge water quality the distance between buildings and foundation excavation grade of risk loss aquifer permeability and the ratio of foundation excavation dewatering amount and aquifer water capacity as evaluation index suitability of groundwater recharge in deep foundation excava...
基坑工程降水回灌适宜性分级研究.pdf
