临近已建高铁桥墩的管廊基坑设计及安全影响分析

Analysis on Design and Safety Influence of Foundation Pit for Utility Tunnel on Adjacent Built High-speed Railway Bridge Pier

基于MIDAS-GTS软件,分析了综合管廊基坑开挖卸载对邻近已建高铁桥墩的影响,预测了桥墩在管廊施工过程中的最大变形值,评估了基坑设计方案的可行性,并对后续管廊施工提出了建议。

Based on MIDAS-GTS software,this paper analyzes the influence of excavation and unloading of foundation pit for utility tunnel on the adjacent built high-speed railway bridge pier,predicts the maximum deformation value of bridge pier in the construction process of utility tunnel,evaluates the feasibility of design scheme for foundation pit and puts forward the suggestions for the follow-up construction of utility tunnel.