摘要
到2030年,上海轨道交通线网总长度将达到1055 km。受施工环境限制、轨道交通网络换乘车站需要、多个地下空间上下交叠设置等,轨道交通地下车站基坑开挖越来越深,与承压水的关系也越来越紧密,深基坑工程受深部承压水影响的风险日益突出。从提高对承压水的认识、正确预控承压水突涌及如何高效应急处置三方面进行论述,提出和分析了应急抢险应做到"三早"理念,依靠"自救"+"他救",防范化解地下车站建设中承压水突涌的风险。
The total length of Shanghai rail transit network will reach 1055 km by 2030.Due to the constraints of construction environment,rail transit transfer station construction and overlapping arrangement of multiple underground spaces,the excavation of rail transit underground station is so deep as to close to the confined water.The risk of confined water for deep excavation construction is becoming increasingly prominent.The improvement of understanding of confined water,correct control of water surge and high efficient accident treatment are discussed.The prevention and mitigation of water surge risk in station excavation can be realized by“self-rescue”and “professional rescue”in accordance to “early action”idea in emergency treatment.
出处
《隧道与轨道交通》
2019年第3期5-10,58,共7页
Tunnel and Rail Transit
