上海轨道交通9号线隧道结构整修“线路停运、集中施工方案”分析

Decommission and Centralized Construction Scheme of Tunnel Structure Reinforcement on Shanghai Urban Rail Transit Line 9

上海轨道交通9号线松江南站至醉白池站区间隧道结构整修工程,在2020年春节期间采用停运集中施工方案进行施工。分析了停运集中施工方案实施的可行性,对比分析了常规施工方案和停运集中施工方案施工效率,介绍了停运集中施工方案的施工组织设计和安全防控措施,并对停运集中施工方案的可实施性及预期效果进行了简单分析。分析结果表明:该区间具备停运集中施工的基本条件;采用停运集中施工方案可以大幅缩短工期,释放夜间施工资源。

The renovation of tunnel structure in a certain section(South Songjiang Station-Zuibaichi Station)on Shanghai metro Line 9 adopted the decommission and centralized construction scheme during the 2020 Spring Festival.In this paper,the feasibility of implementing the centralized construction is analyzed,which is compared with conventional construction scheme in terms of efficiency.Then,the construction organization design and safety control measures,the feasibility and expected effect of the centralized construction are introduced.The results show that this section has the basic conditions for implementing the decommission and centralized construction,and the new scheme could greatly shorten the construction period and release the night construction resources.