Subway tunnels in bustling urban areas are often constructed using shallow buried and concealed excavation methods,and the depth and size of vertical shafts used as construction channels are usually large,inevitably affecting surrounding buildings and structures.Based on the construction of a vertical shaft in a tunnel of Beijing Metro Line 22,numerical simulation methods were used to simulate the layered excavation construction of the shaft,and the impact of the construction process on the existing pedestrian overpass was studied,providing reference for similar projects.
关键词
地铁隧道/施工竖井/人行天桥/数值模拟/变形规律
Key words
subway tunnels/construction shaft/pedestrian overpass/numerical simulation/deformation law
维普
万方数据