期刊名称:IOP Conference Series: Earth and Environmental Science
印刷版ISSN:1755-1307
电子版ISSN:1755-1315
出版年度:2018
卷号:153
期号:4
页码:042005
DOI:10.1088/1755-1315/153/4/042005
语种:English
出版社:IOP Publishing
摘要:Based on the finite element model of approaching excavation of foundation pit, the influence laws of excavation depth and distance on the bridge pier deformation are studied. The results show that subsidence displacement of the bridge pier increases with the increasing of the approaching excavation depth. The axial force of the steel pipe near the bridge pier is greater than that far away from the bridge pier. The influence of approaching excavation distance on foundation pit decreases with the approaching excavation distance increasing. The maximum sedimentation deformation appears at the location of 0.5B (B is the lateral width of the pier). When the approaching excavation distance is less than 1B, sedimentation deformation of the pier is dangerous. When the approaching excavation distance is greater than 1B, sedimentation deformation of the pier is safe.