盾构隧道下穿既有框架结构建筑的影响分析  

Analysis of the Influence of Shield Tunnel Under Existing Frame Structure Buildings

作　　者：张亚明[1,2] 陈东生 刘金龙 祝磊[3] ZHANG Yaming;CHEN Dongsheng;LIU Jinlong;ZHU Lei(Anhui Province Key Laboratory of Green Building and Assembly Construction,Anhui Institute of Building Research&Design,Heifei 230031,China;The Second Supervision and Inspection Station for Anhui Province Building Engineering Quality,Hefei 230031,China;School of Urban Construction and Transportation,Hefei University,Hefei 230601,China)

机构地区：[1]安徽省建筑科学研究设计院绿色建筑与装配式建造安徽省重点实验室,安徽合肥230031 [2]安徽省建筑工程质量第二监督检测站,安徽合肥230031 [3]合肥学院城市建设与交通学院,安徽合肥230601

出　　处：《安徽建筑大学学报》2022年第4期48-52,共5页Journal of Anhui Jianzhu University

基　　金：安徽省住房城乡建设科学技术计划项目(2020-YK06);安徽省重点研究与开发计划项目(202004a05020012,202004h07020002);安徽省自然科学基金项目(2008085ME168)。

摘　　要：以某框架结构建筑为研究对象,基于三维有限元数值模拟,探讨盾构施工对既有建筑的影响。对比分析表明,左线贯通时地表最大竖向沉降位于左线中心轴正上方土体中,双线贯通时地表最大竖向沉降为位于双线对称轴正上方土体中。既有建筑相邻柱基差异沉降最大值小于规范限值,其位于左线、右线中心轴线之外的范围内,而不在两中心轴线之间。计算结论为工程的顺利实施提供了重要依据。Taking a frame structure building as the research object and three-dimensional finite element numerical simulation as the method,the influences of shield construction on existing buildings are discussed.The analysis show that the maximum vertical settlement of the ground surface is located in the soil directly above the center axis of the left line when the left line is completed,and in the soil directly above the symmetry axis of the double line when the double line is completed.The maximum differential settlement of the adjacent column of existing buildings did not exceed the Code for Design of Building Foundation(GB50007-2011),and the settlement occurs outside rather than in the area between the left and right axis lines.The calculation results contributes to the implementation of the project.

关 键 词：盾构 框架结构 差异沉降 

分 类 号：TU528[建筑科学—建筑技术科学]