市域线大直径隧道预制中隔墙拼装姿态分析  

Assembly Attitude Analysis of Prefabricated Partition Walls in Large-Diameter Shield Tunnels of City Lines

作　　者：吴玉凯 唐泽人 葛照国 朱元昌 曲春雨 柳献[2] WU Yukai;TANG Zeren;GE Zhaoguo;ZHU Yuanchang;QU Chunyu;LIU Xian(China Railway 14th Bureau Group Shield Engineering Co.,Ltd.,Nanjing 211800;College of Civil Engineering,Tongji University,Shanghai 200092)

机构地区：[1]中铁十四局集团大盾构工程有限公司,南京211800 [2]同济大学土木工程学院,上海200092

出　　处：《都市快轨交通》2024年第4期96-101,共6页Urban Rapid Rail Transit

基　　金：国家自然科学基金(52078376);中铁十四局集团有限公司科研课题(202214jtky0069)。

摘　　要：为控制大直径隧道预制中隔墙拼装质量,基于上海市机场联络线,对其内部预制中隔墙的拼装姿态进行研究和分析。在规定中隔墙坐标系后,分别对中隔墙在有、无初始拼装误差下的拼装姿态进行研究,得到中隔墙在上述工况下的姿态信息及其底面平面方程解析表达。分析结果表明:1)当中隔墙无初始拼装误差或其仅有平动或转动初始拼装误差时,不同控制点位的选取和调节系统千斤顶的顶进顺序不会对中隔墙的拼装控制产生影响,可根据所得中隔墙姿态表达式对其拼装姿态进行控制;2)当中隔墙仅存在平动或转动外的初始拼装误差时,应依据调节系统不同顶进顺序对中隔墙姿态进行单独计算,再依据所得表达式对中隔墙拼装进行控制,提高中隔墙拼装精度。将解析公式应用于中隔墙施工,取得了良好的工程应用效果。This study investigated and analyzed the assembly attitude of prefabricated partition walls on the Shanghai Airport Link Line to ensure high assembly quality within large-diameter shield tunnels.Initially,the coordinate system of the partition walls was established.Subsequently,the study examined the assembly attitude under initial assembly errors and error-free scenarios.It focused on obtaining precise attitude information and the analytical expression of the partition wall’s bottom plane equation for each operational condition.The analytical results reveal the following:1)In scenarios where there are no initial assembly errors or where errors are limited to translation or rotation,the selection of control points and jacking sequences within the regulating system does not affect the assembly quality of the partition walls.The assembly attitude can be effectively managed using the derived expression for the wall’s attitude.2)When initial assembly errors extend beyond simple translation or rotation,precise control of the partition wall’s attitude becomes crucial.This involves adjusting the jacking sequences within the regulating system accordingly.Utilizing the obtained expression allows for improved assembly accuracy of the partition walls.3)The study successfully applied an analytical formula to constructing partition walls,demonstrating favorable engineering outcomes in practical applications.

关 键 词：城市轨道交通 大直径盾构隧道 预制中隔墙 三维姿态分析 拼装控制 

分 类 号：U231[交通运输工程—道路与铁道工程]