摘要
以某交通轨道线旁拟建某深基坑支护为例,结合南京地区软土特性且对水平位移要求较为严格的工程,重点采用门架式双排桩支护结构型式,从而避免设置内支撑,方便施工,加快了施工进度。介绍了双排桩及单排桩+锚索支护结构的设计与应用,根据基坑开挖过程中获得的现场监测数据验证了施工方案的合理性,并有效的避免了对紧邻交通轨道线的影响,该工程取得的经验可供同类工程借鉴。
Taking the deep foundation pit supporting near some traffic rail line in Nanjing as an example, considering Nanjing area with soft soil characteristics and the high requirements for horizontal displacement of the engineering, the project is focused on using double row piles supporting structure in order to avoid setting interior supports. In this way, the construction was more convenient and the construction progress was at a high speed. Through introducing the double row piles and single pile plus anchor supporting structure design and application and according to the excavation process of field monitoring data, rationality of construction plan was validated. More importantly, the negative influences on the adjacent traffic rail lines were efficiently avoided. The experiences got from this engineering construction can be used as a valuable reference for the similar engineering construction afterwards.
出处
《建筑科学》
北大核心
2013年第1期80-84,40,共6页
Building Science
关键词
深基坑
双排桩
单排桩
锚索
基坑监测
deep foundation pit
double-row piles
single pile
anchor
excavation monitoring
