摘要
结合工程实际,针对毗邻地铁的大型群坑开挖工况,通过优化项目自身基坑分坑和施工工艺,实现了在保障地铁侧基坑分坑满足相关要求的同时,关键线路施工进度免受基坑分坑的影响;对近地铁侧基坑采取了专项的快速施工方案,确保了基坑开挖过程中地铁区间的安全稳定;针对不同范围的中隔墙拆除工程,编制了针对性的施工方案,有效提高了中隔墙拆除补缺的施工效率。相关方案达到了基坑安全施工、进度高效紧凑的要求,工程实施效果较好。
Combined with the engineering practice,as to the excavation conditions of large group pits adjacent to the subway,by optimizing the project's own pit segmentation and construction process,it has achieved the goal of ensuring that the pit segmentation on the subway side meets relevant requirements while avoiding the impact of pit segmentation on the construction progress of key lines;a special rapid construction plan is adopted for the foundation pit near the subway,which can ensure the safety and stability of the subway section during the excavation process;a targeted construction scheme is developed for the demolition of middle partition walls in different scopes,which effectively improves the construction efficiency of filling gaps in the demolition of middle partition walls.The relevant schemes can meet the requirements of safe construction and efficient progress of the foundation pit,and the implementation effect of the project is good,which can provide a certain reference for similar projects.
作者
张晓波
ZHANG Xiaobo(Shanghai Construction No.1(Group)Co.,Ltd.,Shanghai 200120,China)
出处
《建筑施工》
2023年第6期1060-1063,共4页
Building Construction
关键词
毗邻地铁
基坑分块
群坑施工
施工优化
adjacent to subway
foundation pit segmentation
construction of group pits
construction optimization
