苏州地区粉土夹层中基坑降水实践  

Deep Excavation Dewatering in Suzhou Soil with Silt Lenses

作　　者：李苏春[1] 浦春林 

机构地区：[1]江苏省纺织工业设计研究院有限公司,江苏苏州215128

出　　处：《土工基础》2015年第3期20-22,25,共4页Soil Engineering and Foundation

摘　　要：苏州地区进行深基坑设计与施工时,多遇到具有微承压含水性质的粉土夹层混合土层,该层降水成功与否直接影响工程的顺利进行。结合具体基坑降水案例,论述了该夹层成分、富水性及降水方案的选择。实践证明,位于该层的基坑工程,可采用小型群井进行辅助降水。In the deep excavation practice in the urban area of Suzhou City,the slightly artesian silt lenses are frequently encountered.The success of the dewatering in this layer is critical to the smoothness of the entire deep excavation project.This paper resents a case study of the deep excavation project.The material components,water bearing characteristics and the selection of the dewatering scheme are discussed.The use of small well point groups is a feasible and cost effective solution in these soils.

关 键 词：基坑降水 粉土夹层 管井 苏州地区 

分 类 号：TU472[建筑科学—结构工程]