摘要
在运营铁路影响范围内对新建桥墩基坑进行施工,基坑开挖会对铁路产生一定影响。为确保邻近铁路的安全,须对基坑的围护桩深度进行研究。以济宁市海川路北延上跨新兖铁路的桥墩承台基坑工程为背景,调研相关土层的物理参数,运用有限元软件MIDAS GTS分析在不同的围护桩深度下,铁路路基土的沉降数值。通过对比现有规范,证明工程实施的可行性,可为类似邻近铁路路基的基坑开挖工程提供借鉴。
Cap excavation has a certain impact on railways by construction of foundation pits for newly-built bridge piers within the impact area of nearby operating railways.In order to ensure the safety of the adjacent railway,it is necessary to carry out relevant research on the depth of the retaining piles of the foundation pit.Based on the background of the bridge pier cap foundation pit project spanning the Xinyan Railway on the north extension project of Haichuan Road in Jining City,the physical parameters of the relevant soil layers are investigated,and the finite element software MIDAS GTS is used to analyze the the settlement value of the foundation soil of the railway under the depth of the retaining pile.By comparing with the existing specifications,the feasibility of the project implementation is proved.It can provide reference for foundation pit excavation engineering similar to the adjacent railway foundation.
作者
顾兴民
GU Xingmin(China Railway 20th Bureau Group Fourth Engineering Co.,Ltd.,Qingdao 266061,China)
出处
《现代交通技术》
2023年第3期41-43,50,共4页
Modern Transportation Technology
关键词
基坑
围护桩
铁路
数值分析
foundation
retaining pile
railways
numerical analysis
