摘要
南京河西地区紧临长江下游,属长江漫滩区,地质条件差,地下水丰富,地铁运营盾构隧道周边深大基坑施工极易造成较大的管片收敛变形,产生的隧道结构病害严重影响地铁运营安全。结合地铁保护的实际需要,提出了隧道结构收敛变形的三种治理措施,并得到了成功运用。
Nanjing Hexi area situated beside the downstream of Yangtze River,belongs to the Yangtze valley,which has poor geological conditions and rich groundwater.The convergence and deformation of segments is caused by constructions as deep and large foundation pits next to shield tunnels of metro in operation.This sort of structure damage has a strong impact on operation metro safety.Based on the actual demand of metro protection,this article presents three measurements of convergence and deformation of metro structure which have successful implementation.
作者
许文
XU Wen(Nanjing Metro Co. , Ltd, Nanjing 210012, China)
出处
《现代交通技术》
2018年第6期84-88,共5页
Modern Transportation Technology
关键词
盾构隧道
收敛
治理
shield tunnel
convergence
treatment
