摘要
近年来随着城市化进程的推进综合管廊在快速建设,在管廊设计、施工过程中会遇到高速路、河道等不能拆除的障碍物,为确保综合管廊的连续性,必须在施工技术上考虑穿越这些障碍物。结合工程实例,对采用双排拉森钢板桩分段复合围堰支护技术在综合管廊下穿河道施工方法如何保证河道中深基坑支护体系稳定、安全,阻隔河水不进入基坑,保证基坑干燥无积水的施工条件进行阐述,从可行性、经济性、保工期3个方面来展示此方案取得的效果。
In recent years,with the rapid development of urbanization,the comprehensive pipe corridor has been rapidly constructed,in the design of the pipe gallery,the construction process will encounter obstacles such as high speed roads,rivers and other obstacles can not be removed,in order to ensure the continuity of the integrated pipe gallery,pass through these obstacles must be considered in construction technology. With an engineering example,the construction method of crossing the river under the comprehensive pipe gallery by using Larsen steel sheet pile and segmental Composite cofferdam support technology,how to ensure the support system of deep foundation pit in river channel to be stable and safe and prevent the water entering the foundation pit,to ensure that no water construction pit drying conditions set forth,construction conditions for ensuring no water accumulation in foundation pit,from the feasibility,economy,duration of three aspects to show the effect of this program.
出处
《施工技术》
CAS
2018年第S1期645-648,共4页
Construction Technology
关键词
综合管廊
钢板桩
复合围堰
下穿河道
comprehensive utility tunnel
steel sheet pile
composite cofferdam
under crossing river channel
