管廊中隔墙、侧墙及顶板一次支模两次浇筑成形施工技术

One-time Formwork Erection and Two Times Pouring Forming Construction Technology for Middle Partition Wall,Side Wall and Top Plate of Utility Tunnel

为解决城市地下空间愈发拥挤的问题,城市综合管廊的建设逐渐兴起。受场地条件限制,管廊基坑大多采用单侧支模工艺。为解决单侧支模施工作业空间小、内支撑加固困难等问题,采取了对管廊中隔墙、侧墙及顶板一次支模两次浇筑成形的施工技术,总结了工艺要点和实施效果,为类似工期紧张的管廊施工项目提供了一种思路。

In order to solve the problem of urban underground space increasingly crowded,the construction of urban utility tunnel is gradually rising.Due to the limitation of site conditions,the utility tunnel foundation pit mostly adopts unilateral formwork erection technology.In order to solve the problems of small working space and difficult reinforcement of internal support in the construction of single side formwork,the construction technology of one-time formwork erection and two times pouring forming for the middle partition wall,side wall and top plate of the utility tunnel is adopted,and the process essentials and implementation effects are summarized,which provides a way of thinking for similar utility tunnel construction projects with tight construction period.