卵石层深基坑的降水设计与施工技术  

Dewatering Design and Construction Technology for Deep Foundation Pit of Pebble Soil Layer

作　　者：赵骏 杨宇波 苗林 ZHAO Jun;YANG Yubo;MIAO Lin(Shanghai Foundation Engineering Group Co., Ltd., Shanghai 200002, China)

机构地区：[1]上海市基础工程集团有限公司,上海200002

出　　处：《建筑施工》2019年第4期576-578,共3页Building Construction

摘　　要：通常情况下,施工水下承台时可以采用钢套箱、拉森钢板桩围堰或地下连续墙等施工方法,但以上方法均不适用于有卵石层的深基坑施工。因此,结合工程现场环境总结出一套卵石土层深基坑降水施工技术,即通过采取深井井点降水与集水明排相结合的方法,顺利地完成了基坑施工,取得了理想的效果。Under normal circumstances, construction methods such as steel casings, Larsen steel sheet pile cofferdams or underground continuous walls can be used for the construction of underwater pile caps, but the above methods are not suitable for the construction of foundation pit having pebble soil layer. Therefore, combined with the engineering site environment, a set of deep foundation pit dewatering construction technology in the pebble soil layer is summarized.That is, by adopting a combination of deep well point dewatering and catchment waterway drainage, the foundation pit construction is successfully completed and the ideal effect is achieved.

关 键 词：卵石层 深基坑 深井井点降水 集水明排 水力坡度值 

分 类 号：TU753.66[建筑科学—建筑技术科学]