摘要
以杭州某基坑支护工程为例,综合考虑了此基坑地理位置、土质条件、基坑开挖深度及周围环境的影响,特别是该场地周围环境非常复杂、基坑边道路管线分布密集、基坑开挖深度较大,进行了多种方案的综合比选,采用钻孔灌注桩结合现浇钢筋混凝土支撑体系、水泥搅拌桩止水止土、土钉支护多支护体系结构形式,并在施工过程中对基坑围护结构进行持续监测,保证了整个施工过程顺利进行,其结果可为类似基坑工程提供借鉴。
Taking a foundation pit support project in Hangzhou as an example, the geographical location, soil quality, excavation depth and surrounding environment of the foundation pit were taken into account. Especially, the environment around the site is very complex, the road pipeline is densely distributed along the foundation pit and the excavation depth of foundation pit is large. In this paper, the comprehensive comparison of various schemes was carried out, and the structure of multi-support system was adopted to combine cast-in-place pile with cast-in-situ reinforced concrete support system,cement mixing pile to stop water stop and soil nail support. And the foundation pit enclosure structure was monitored continuously during the construction process, the whole construction process was guaranteed to proceed smoothly, provided the valuable experience for the similar foundation pit engineering.
作者
王乾程
WANG Qiancheng1,2(1. Chongqing Survey Institute, Chongqing 401121, China; 2. Chongqing Engi. Research Center of Geotechnical Engi., Chongqing 401121, China)
出处
《低温建筑技术》
2018年第8期97-100,共4页
Low Temperature Architecture Technology
关键词
钻孔灌注桩
现浇钢筋混凝土支撑体系
水泥搅拌桩
土钉支护
foundation pit support
cast-in-place reinforced concrete support system
cement mixing pile
soil nailing support
