大连理工大学学报2016，Vol.56Issue(3)：257-262,6.DOI:10.7511/dllgxb201603006
地铁车站洞桩法施工对地层沉降影响研究
Research on ground settlement of metro station construction by PBA method
摘要
Abstract
Combined with engineering conditions of Songjiang Road metro station in Dalian ,a three‐dimensional model of underground station was built using finite element software MIDAS‐GTS ,and the development tendencies of surface settlement ,settlement trough and plastic zone were analyzed . The analytical results show that the surface settlement has obvious stages and the construction of pilot tunnel is the key phase to control surface settlement .Furthermore ,the maximum surface settlement and the final surface settlement both meet the control criterion 60 mm , so PBA (pile‐beam‐arch ) method is effective to control surface settlement .And the mode and depth of the settlement trough are affected not only by multi‐tunnel effect ,but also by burial depth and construction mode .Finally , plastic zone generates at pilot tunnel phase ,PBA method could control the development of plastic zone effectively .关键词
地铁车站/洞桩法/地表沉降/沉降槽/群洞效应Key words
metro station/PBA (pile-beam-arch ) method/ground settlement/settlement trough/multi-tunnel effect分类
建筑与水利引用本文复制引用
王峥峥,郭翔宇..地铁车站洞桩法施工对地层沉降影响研究[J].大连理工大学学报,2016,56(3):257-262,6.基金项目
住房和城乡建设部科学技术计划项目（2014-K5-005）；大连市建委科技项目（052033）． （）
