科技创新与应用2024，Vol.14Issue(2)：71-74,4.DOI:10.19981/j.CN23-1581/G3.2024.02.017
下穿路基施工与运营对桥梁安全的影响分析
赵卫国1
作者信息
- 1. 云南交投集团云岭建设有限公司,昆明 650224
- 折叠
摘要
Abstract
Taking a newly reconstructed highway project under an operating bridge as an example,this paper uses the geotechnical finite element analysis software MIDAS/GTS NX to simulate and analyze the whole process of foundation pit excavation and embankment backfilling,analyzes the influence of each construction stage on the bridge pier,and obtains the maximum pier top displacement of the upper span bridge pier.Then the corresponding bridge finite element model is established by using MIDAS/CIVIL software,and the maximum pier top displacement calculated by MIDAS/GTS NX is added to the MIDAS/CIVIL model as a forced displacement to compare and analyze the internal force changes of the bridge structure before and after the roadbed backfilling construction.According to the comparative analysis and checking calculation,we can judge whether the influence on the bridge is controllable or not,and put forward the corresponding suggestions.关键词
下穿路基施工/桥梁安全/数值模拟/内力对比/风险评估Key words
underpass subgrade construction/bridge safety/numerical simulation/internal force comparison/risk assessment分类
交通工程引用本文复制引用
赵卫国..下穿路基施工与运营对桥梁安全的影响分析[J].科技创新与应用,2024,14(2):71-74,4.
