复杂环境条件下的群坑开挖技术与基坑变形分析  

Excavation Technology for Group Foundation Pits and Relevant Deformation Analysis Under Complex Environment Condition

作　　者：凌晨 

机构地区：[1]上海建工二建集团有限公司,上海200080 [2]上海建筑工程逆作法工程技术研究中心,上海200080

出　　处：《建筑施工》2015年第9期1027-1029,共3页Building Construction

摘　　要：介绍了在复杂环境条件下复合群坑的开挖施工与基坑变形的分析及控制方法。区别于单个深基坑工程的施工,群坑施工在挖土及支护结构施工的时间配合上要求更高,如此才能确保基坑和周边环境的安全。借由3个已完成的群坑工程检测数据,证明了群坑的间距、开挖深度与基坑变形之间的某种关联性。This paper introduces the excavation construction of composite group foundation pits, the deformation analysis and relevant control method under the complex environment condition. Different from construction of single deep foundation pit engineering, the group foundation pits construction requires higher time coordination on excavation and retaining structure construction, so as to ensure the safety of the foundation pit excavation and surrounding environment. Three completed testing data of group pits engineering proved that there is a certain correlation among the group pits distance, the excavation depth and the foundation pit deformation.

关 键 词：复杂环境 复合群坑 土方开挖 基坑变形 环境保护 

分 类 号：TU473.2[建筑科学—结构工程]