摘要
在软弱地层条件下,临近地铁的新建工程会引起地铁隧道位移,进而引起道床沉降、改变道床线型、影响行车安全。为研究整治这一类地铁道床结构病害,文中结合某地铁工程的实际案例,通过多方案比选,选定原位浇筑薄支墩法,并通过理论计算、调整临时支撑间距来减少整治工程量,在实现安全的、不中断运营效果的同时,也快速地完成了整治隧道结构沉降带来的道床线形病害问题,可为同类型道床病害处理提供借鉴与参考。
Under soft soil condition,the construction of new projects near the subway often causes tunnel displace⁃ment in the track bed settlement,and changes in the track bed shape,which affects driving safety.A subway project is taken to study that tunnel damage of bed structure.The method of thin pier with in-situ pouring is selected by mul⁃tiple schemes comprising.The engineering quantity of tunnel treatment is reduced by theoretical calculation and the spacing adjusting of temporary support.With the effect of ensuring safety and uninterrupted operation,the tun⁃nel damage of bed structure caused by tunnel settlement has also been quickly and thoroughly completed.The re⁃sults may provide the reference for similar cases.
作者
刘世武
段玉振
尹继光
段海滨
LIU Shiwu;DUAN Yuzhen;YIN Jiguang;DUAN Haibin(Hangzhou Metro Group Co.,Ltd.,Hangzhou 310017,China;Beijing Urban Construction Design and Development Group Co.,Ltd.,Hangzhou 310006,China;Zhejiang Environmental Engineering Co.,Ltd.,Hangzhou 310012,China)
出处
《低温建筑技术》
2024年第1期145-149,共5页
Low Temperature Architecture Technology
关键词
地铁隧道
道床沉降
病害治理
subway tunnel
track bed settlement
damage treatment
