洞桩法车站小净距下穿运营线路施工力学分析  

Mechanical Analysis of the Construction of Small Clear Distance Undercrossing the Operating Line of the Station by Hole Pile Method

作　　者：宁纪超 李维洲 易领兵 权威 任磊 任方毅 郑力铭 宋欣 NING Jichao;LI Weizhou;YI Lingbing;QUAN Wei;REN Lei;REN Fangyi;ZHENG Liming;SONG Xin(China Communications Construction Corporation(Railway Branch|Railway Institute),Beijing 100088,China;Zhengzhou Metro Group Co.,Ltd.,Zhengzhou 450000,China;China Railway Engineering Design Consulting Group Co.,Ltd.,Beijing 100088,China;China National Railway Group Engineering Management Center,Beijing 100088,China)

机构地区：[1]中国交建轨道交通事业部(轨道分公司|铁道总院),北京100088 [2]郑州地铁集团有限公司,郑州450000 [3]中铁工程设计咨询集团有限公司,北京100088 [4]中国国家铁路集团有限公司工程管理中心,北京100088

出　　处：《路基工程》2024年第2期117-122,共6页Subgrade Engineering

基　　金：河南省科技厅自然科学基金资助项目(162102210188);郑州交通重点工程建设管理中心横向委托资助项目(51000128);河南省建筑业协会科研开发项目(YJX-2023-K01、YJX-2023-K02)。

摘　　要：基于某近接下穿运营线路区间新建洞桩法车站工程,采用数值分析软件对施工过程进行模拟分析,研究运营线路区间变形规律、最大及最小主应力变化趋势和发生位置;现场施工监测的发展趋势、发生位置均与模拟结果拟合度较高,且现场监测值均满足规范要求。Based on the newly built hole pile method station project which is close to a line section of the underpass,the numerical analysis software is used to simulate the construction process,the deformation law of the operating line section,the variation trend of maximun and minimun principle stress and the occurrence locaton are studied.The development trend of the field construction monitoring,and the occurrence location and the simulation result are highly simulated.The filed monitoring values all meet the requirements of the specification.

关 键 词：洞桩法 近接 下穿 区间 变形监测 位移 

分 类 号：TU753[建筑科学—建筑技术科学]