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随着上海早期道路隧道服役期的增加,隧道“积劳成疾”或因环境条件改变“病患多发”的情况越发频繁,应适时组织大修。针对道路隧道大修的客观需要,提出了以结构、设备等服役性能检测、评定结果作为大修决策的方法;并就大修前准备工作、大修设计施工、大修后评估3阶段的工作流程、内容提出了要求;结合已有隧道大修的工作经验,大修隧道服役性状和特点,分别阐述了结构渗漏水治理、结构破损补强、地基加固等的设计方法,以期对隧道大修决策、大修设计提供参考与借鉴。
With the increase of the service life of the early road tunnels in Shanghai, the tunnels will become more and more difficult due to the frequent occurrence of tunnels or overloading due to the change of environmental conditions. In view of the objective need of road tunnel overhaul, this paper put forward the method of inspecting and evaluating the service performance of structure and equipment as the method of overhauling decision. The work flow of preparatory work before overhaul, overhaul design and construction, Requirements; combined with the existing tunnel overhaul experience, overhaul tunnel service properties and characteristics, respectively, described the structure of water leakage control, structural damage reinforcement, foundation reinforcement and other design methods in order to tunnel overhaul decision-making, overhaul design provides a reference and Learn from