城市隧道近接建筑施工的相互影响规律研究  

Analysis on interaction influence between urban tunneling and adjacent buildings

作　　者：王辉[1,2,3] 蒋成 郑朋强 李楠[1] WANG Hui;JIANG Cheng;ZHENG Pengqiang;LI Nan(Department of Resources and Civil Engineering,Shandong University of Science and Technology,Tai’an,Shandong 271019,China;College of Civil Engineering and Architecture,Shandong University of Science and Technology,Qingdao,Shandong 266590,China;Key Laboratory of Civil Engineering Disaster Prevention and Mitigation,Shandong University ofScience and Technology,Qingdao,Shandong 266590,China)

机构地区：[1]山东科技大学资源与土木工程系,山东泰安271019 [2]山东科技大学土木工程与建筑学院,山东青岛266590 [3]山东科技大学山东省土木工程防灾减灾重点实验室,山东青岛266590

出　　处：《山东科技大学学报（自然科学版）》2019年第4期27-32,49,共7页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(51409154,51804182);山东科技大学杰出青年科技人才支持计划项目(2015JQJH106);山东省高等学校科技计划项目(J16LG03)

摘　　要：为研究城市隧道近接建筑施工的相互影响规律,采用ABAQUS软件的动态模拟分析方法,自行编程建立能够改变隧道与建筑相对位置的参数化模型,分析相对位置(l,θ)的变化对新建隧道和近接建筑物的变形影响规律。研究表明:离建筑物底部较近的隧道受建筑物地基附加应力影响较大,在影响隧道变形的因素中起主导作用,随着距离增大,地基附加应力的影响逐渐减小,隧道的变形逐渐趋于一致;当θ一定时,建筑物A点水平和竖向位移随着距离(l)的增大逐渐减小,当θ较小时,位移变化率较小,而当θ较大时,位移变化率则较大;编制基于Matlab—ABAQUS的隧道变形有限元模拟定位程序,采用二次函数对既有建筑对邻近隧道稳定性影响的临界线进行拟合,得到对应的拟合函数。In order to study the interaction between urban tunneling and adjacent buildings,a parametric model that could change the relative position between tunnel and buildings was established by self-developed program according to the dynamic simulation method of ABAQUS.Then,the influence of variation of relative position(l,θ)on the deformation of tunnel and adjacent buildings was analyzed.The results show that the deformation of tunnels within close proximity the foundation of buildings is influenced by the additional stresses of the foundation greatly.With the increase of distance(l),the influences of additional stress reduces and the tunnel deformation tends to become uniform gradually.Whenθis fixed,the horizontal and vertical displacement of point A in the building decreases with the increase of l.Whenθis smaller,the rate of change displacement is smaller,but whenθis larger,the rate of change is larger.Location program of finite element simulation for tunnel deformation was compiled based on Matlab-ABAQUS.The quadratic equation was applied to fit the critical line of the existing building’s effect on the adjacent tunnel’s stability,and the corresponding fitting function was obtained.

关 键 词：动态模拟 城市隧道 相互影响 近接建筑 变形 

分 类 号：TU457[建筑科学—岩土工程]