解析法和数值法在基坑降水和回灌系统设计中的综合应用.pdf

2011年10月下 施工技术 第40卷第351期 CONSTRUCTION TECHNOLOGY 71 解析法和数值法在基坑降水和回灌 系统设计中的综合应用 耿冬青，刘晓辉2，宋福渊，白晨光，石敬斌 (1.中国建筑股份有限公司技术中心，北京101300：2.中国建筑股份有限公司海外事业部，北京100026) [摘要]以卡塔尔某基坑降水工程为例，综合运用解析法和数值法对基坑降水和回灌系统进行设计计算，通过对比 分析和相互验证，解析法和数值法的计算结果基本一致，并与工程现场实际监测的地下水位和水量较好地吻合，表 明解析法和数值法的综合应用是一种可靠的基坑降水和回灌系统的设计方法. [关键词]地下工程；降水；回灌；解析法；数值法；设计 [中图分类号]TU753.1 [文献标识码]A [文章编号]1002-8498(2011)20-0071-03 Integrated Application of Analytical Methods and Numerical Methods in the Design of Dewatering and Recharging of Foundation Excavation Geng Dongqing' Liu Xiaohui Song Fuyuan' Bai Chenguang' Shi Jingbin' (1.China State Construction Engineering Co.Lad.Technical Center Beijing 101300 China: 2.China State Construction Engineering Co. Ltd.Overseas Operations Beijing 100026 China) Abstract:Based on certain foundation excavation project in Qatar the analytical methods and numerical methods are used for the design of the dewatering and recharging system.Through parison and checkout of the two methods the design results of analytical methods consists well with that of numerical methods.The design results are validated by monitored groundwater level and water quantity.It proves that the integrated application of analytical methods and numerical methods is a dependable design method for dewatering and recharging system of foundation excavation. Key words:underground;dewatering;recharging;analytical methods;numerical methods;design 基坑降水工程中应用回灌技术不仅减少由于地 -4.3m.因此需将地下水位整体降低1.5m. 下水抽排造成基坑周边地表及建筑物沉降，也节约 由于现场条件限制，没有现成的市政排水...