摘要
以贵阳轨道交通1号线地铁隧道为依托工程,利用有限元软件MIDAS/GTS建立了多个岩溶空腔和隧道在不同空间位置条件下的模型。通过对比各模型隧道衬砌应力、弯矩以及锚杆轴力,分析岩溶空腔对隧道造成的影响。结果表明,隧道衬砌应力及弯矩受岩溶空腔影响较大,同时锚杆轴力亦受岩溶空腔的影响,需要分别采取加固措施。
Taking the Guiyang metro line No. 1 subway tunnel as the engineering background,based on the finite element software MIDAS/GTS,several models of Karst cavities and tunnels under different spatial locations are established. By comparing the stress,bending moment and anchor axial force of each model tunnel lining,the influence of the karst cavity on the tunnel is analyzed. The results show that the stress and bending moment of tunnel lining are greatly influenced by the Karst cavity,and the anchor axial force is also affected by the Karst cavity,so it is necessary to take some strengthening measures.
作者
黄俊锋
谢涛
陈俊
钱由胜
宋帅
HUANG Junfeng;XIE Tao;CHEN Jun;QIAN Yousheng;SONG Shuai(School of Civil Engineering,Guizhou University,Guiyang,Guizhou 550025,China;School of Architectural Engineering,Guizhou Polytechnic of Construction,Qingzhen,Guizhou 551400,China)
出处
《施工技术》
CAS
2018年第14期25-28,共4页
Construction Technology
基金
贵州大学研究生创新基金资助(研理工2017034)
贵州省工业攻关项目(黔科合GY字[2009]3029)
关键词
地下工程
隧道
岩溶空腔
稳定性
有限元分析
underground engineering
tunnels
Karst cavity
stability
finite element analysis
