The load generated during the construction and operation of the new road under the new road will generate vertical direction and side additional stress on the soil layer near the bridge pier near the railway viaduct,which will cause vertical and lateral deformation of the bridge foundation,which will seriously affect the safety of the railway.Essence In order to ensure the safety of railway safety during the construction and operation of engineering,the safety assessment of the engineering design plan is required.This article combines a railway project under an actual highway,using MIDAS/GTS software to simulate the entire process of penetrating the railway project under the construction of a new road,and accurately analyze the impact of different construction stages on the railway.The analysis results show that the high-speed rail bridge pier sinking volume is less than 2 mm under the most unfavorable conditions of road construction,and the maximum axis force of the pier pile foundation is less than the axon value of the bridge piles.Theoretical calculations can meet the specifications and original design requirements.Through numerical simulation analysis,it can provide reliable data support for railway monitoring and monitoring during the construction process,and provide a reference for similar engineering practice in the future.
关键词
道路工程/下穿铁路桥/数值模拟/附加沉降/桩基轴力
Key words
road engineering/undercrossing railway bridge/numerical simulation/additional settlement/axial force of pile
维普
万方数据