摘要
浅埋暗挖法因其施工工艺简单、地面干扰少、地层适应性强,成为了城市繁华地段地铁隧道建设的主要工法,然而其施工必然会对邻近建构筑物产生影响。依托北京地铁22号线某隧道CRD法施工工程,采用数值模拟方法,精细化模拟了施工竖井和横通道、CRD法双线隧道全施工过程,提出了天桥的变形控制指标,研究施工影响下邻近既有人行天桥的变形规律及其控制措施。
The shallow buried and concealed excavation method has become the main construction method for subway tunnels in bustling urban areas due to its simple construction process,low ground interference,and strong geological adaptability.However,its construction will inevitably have an impact on adjacent buildings.Based on the CRD method construction project of a tunnel on Beijing Metro Line 22,numerical simulation methods were used to finely simulate the entire construction process of the vertical shaft and horizontal passage,as well as the CRD method double track tunnel.The deformation control indicators of the overpass were proposed,and the deformation laws and control measures of adjacent existing pedestrian overpasses under the influence of construction were studied.
作者
申庆梦
王健
马文辉
杨敏
杨纬华
邓彩霞
肖书森
Shen Qingmeng;Wang Jian;Ma Wenhui;Yang Min;Yang Weihua;Deng Caixia;Xiao Shusen(Beijing Urban Rail Transit Construction Engineering Co.,Ltd.,Beijing,China)
出处
《科学技术创新》
2024年第20期180-183,共4页
Scientific and Technological Innovation
关键词
地铁隧道
浅埋暗挖法
人行天桥
数值模拟
变形规律
控制方法
subway tunnels
shallow burial and hidden excavation method
pedestrian overpass
numerical simulation
deformation law
control methods