摘要
以虹源盛世国际文化城工程(基坑面积93 383 m^2,深度15.3 m)为例,探讨临近供能管沟超大深基坑支护设计及施工关键技术。结果表明,所设计的基坑支护结构及采用的施工方法可以有效控制基坑变形和保护周围环境,围护结构侧向位移最大值为开挖深度的0.23%~0.72%,管沟相邻测点相对位移均<20 mm。
Taking Hongyuan Shengshi International Cultural City project(excavation area of 93 383 m^2 and depth of 15.3 m) as an example,the design and construction key technology of large deep foundation pit adjacent to energy supply canals are discussed. The results show that the design of foundation pit support structure and the construction method can effectively control the deformation of foundation pit and protect the surrounding environment. The maximum lateral displacement of the envelope is 0.23% ~ 0.72% of the excavation depth,and the relative displacement of the adjacent measuring points is less than 20 mm.
出处
《中国市政工程》
2016年第B10期29-33,共5页
China Municipal Engineering
关键词
超大深基坑
支护
施工技术
监测分析
临近管线
super-large deep foundation pit
supporting
construction technology
monitoring & analyzing
near pipelines
