深厚覆盖层住宅工程渗控有限元分析  

Finite Element Analysis of Seepage Control in Residential Buildings with Deep Overburden

作　　者：郁舒阳 张胜伟 杨兆兵 张继勋[1] Yu Shuyang1, Zhang Shengwei2 ,Yang Zhaobing3 ,Zhang Jixun1(1. College of Water Conservancy ~ Hydropower Engineering, Hohai Univ., Nanjing 210098, China~ 2. Rizhao Institute of Ocean ~ Fisheries, Rizhao 276800, China~ 3. Water Authority of Rencheng District, Ji- ning 272000, Chin)

机构地区：[1]河海大学水利水电学院,南京210098 [2]日照市海洋与渔业研究所,山东日照276800 [3]济宁市任城区水务局,山东济宁272000

出　　处：《三峡大学学报（自然科学版）》2018年第2期1-5,共5页Journal of China Three Gorges University：Natural Sciences

基　　金：国家科技支撑计划项目(2015BAB07B10)

摘　　要：为合理解决位于深厚覆盖层上河网交汇区某住宅工程建筑群地下室渗水问题,分析了地下室渗水的原因,针对该小区的地形地质条件,建立了三维有限元模型,提出了垂直防渗、水平防渗和排水措施三种方案,考虑到渗控范围并结合经济性进行比较分析.结果表明:垂直防渗方案只有将垂直防渗墙深度打到50m以上(不透水基岩处),并向上下游延伸100m才能控制地下水位到预定高程(46.5m),但经济性较差;排水措施能够控制地下水位至46.32m,但是渗漏量较大,每天超过12万m^3,需设置较强的抽排系统,经济性一般;水平防渗措施有效的降低了小区的地下水位至预定高程(46.5m),且经济性最好.研究结果为具有类似条件的地下水位控制工程的设计和施工提供参考.In order to solve the seepage problem of residential buildings basement in the river confluence area on the deep overburden,this paper analyzes the causes of the seepage problem; a 3D finite element model is built according to the topographic and geological conditions of the area; and three schemes such as vertical seepage control, horizontal seepage prevention and drainage are put forward and analyzed according to the seepage control range and economical efficiency. The results show that the vertical seepage control scheme has some effects in the condition that the length of the vertical cutoff wall is more than 50 m,and extend 100 m upstream and downstream; so the economy is the worst; the drainage measures can control the water table to 46.32 m,but the leakage is large, more than 120 thousand ma per day, needing to set up a strong pumping system; the economy is better; the horizontal seepage control measures can effectively reduce the groundwater table of the area to a predetermined elevation（46.5 m）; and the economy is the best. The research results provide reference for the design and construction of groundwater control project with similar conditions.

关 键 词：深厚覆盖层 渗控方案 有限元 地下水位 渗控效果 

分 类 号：TU943[建筑科学—建筑技术科学]