摘要
随着城市高速铁路及地铁的飞速发展,城市地铁线路愈发密集,新的高铁站交通枢纽建设过程中不可避免邻近既有运营地铁站和地铁隧道。深基坑围护结构地下连续墙邻近地铁站施工对沉降变形十分敏感,当施工时引起地层扰动后,极易引起建筑物开裂、不均匀沉降、倾斜等危害。既有地铁站无围护结构进一步加大了围护结构地下连续墙施工的难度与风险。为此,邻近既有地铁站施工过程中必须采取有效的沉降变形控制措施,以确保顺利、安全、高效地完成围护结构施工。
With the rapid development of urban high-speed railways and subways,urban metro networks are becoming increasingly dense.The construction of new high-speed railway station transportation hubs inevitably occurs adjacent to existing operational subway stations and tunnels.The construction of diaphragm walls,serving as the retaining structure for deep foundation pits,is highly sensitive to settlement and deformation when carried out near subway stations.Ground disturbance induced during construction can easily lead to hazards such as building cracking,differential settlement,and tilting.The absence of a retaining structure for the existing subway station further increases the difficulty and risk of constructing the diaphragm wall.Therefore,effective settlement and deformation control measures must be implemented during construction adjacent to existing subway stations to ensure the smooth,safe,and efficient completion of the retaining structure.
作者
何永昶
张亚飞
贾磊
王钰鑫
HE Yong-chang;ZHANG Ya-fei;JIA Lei;WANG Yu-xin(China State Railway Group Co.,Ltd.,Shanghai East Station Command Center,215100,Shanghai,China;China Railway Beijing Engineering Bureau Group Co.,Ltd.,102308,Beijing,China;China Railway Engineering Consulting Group Co.,Ltd.,100055,Beijing,China)
出处
《建筑技术》
2025年第24期3000-3004,共5页
Architecture Technology
关键词
既有地铁站
无围护结构
沉降变形
地下连续墙
existing subway station
without retaining structure
settlement deformation
diaphragm wall
