城市隧道防汛应急系统分析与技术探讨

近年来,极端天气频发,多地受到了严重的洪涝灾害.广州因地处中国最南方且常年雨水充足,遭遇暴雨天气的情形较过往要更严重,破坏性更大,且多次的瞬时雨量超过了历史的极值,给广州市路面交通造成了严重压力,尤其对城市隧道内的安全提出了较大考验.项目组对广州市政道路下穿隧道工程的防汛应急做了相关研究,提出当隧道内积水达到预警水位,...

Analysis and Technical Discussion on Flood Control Emergency System of Urban Tunnel

In recent years, extreme weather occurred frequently, resulting in serious floods in many places. Guangzhou is located in the southernmost part of China and has abundant rainfall all the year round. The rainstorm weather in Guangzhou is more frequent and destructive than in the past. The instantaneous rainfall recorded many times exceeds the historical extreme value, causing serious pressure on the road traffic in Guangzhou, especially for the safety of urban tunnels. The project team has made relevant research on the flood control emergency of the tunnel project under the municipal road, and proposed that when the water in the tunnel reaches the warning water level, the signal light will be on, and the gates will be automatically put down at both ends of the tunnel to prohibit vehicles from passing. In this paper, a brief introduction of tunnel drainage, as well as the objectives and principles of tunnel flood control emergency design are proposed. Combined with the application analysis of the system, the necessity and application of flood control emergency system in new urban tunnel projects and existing urban tunnel projects are proposed.