摘要
以济南中心商务区历下广场站~绸带公园站盾构隧道下穿工程为例,借助三维数值模拟方法,研究三面围合条件下双线盾构隧道叠加下穿地下结构过程中,既有结构底板的变形问题,结果表明在三面围合条件下,合理设置盾尾同步注浆压力才能有效减小地下结构底板沉降。
Taking the Lixia Square Station^Sidai Park Station shield tunnel underpassing project in Jinan Central Business District as the object, with the aid of three-dimensional numerical simulation method, the process of double-line shield tunnel superimposed underpassing the underground structure under three-sided enclosure conditions is studied. The deformation problem of the structure bottom plate, the results show that under the condition of three-sided enclosure, a reasonable setting of the shield tail synchronous grouting pressure can effectively reduce the settlement of the underground structure bottom plate.
作者
李明宇
张启瑞
孙连勇
门燕青
周明祥
卢晓峰
LI Ming-yu;ZHAGN Qi-rui;SUN Lian-yong;MEN Yan-qing;ZHOU Ming-xiang;LU Xiao-feng(l.Zhengzhou University,450001,Zhengzhou,China;Ji'nan Rail Transit Group Co.,Ltd.,250101,Ji'nan,China;China Railway 16th Bureau Group Co.,Ltd.,100020,Beijing,China)
出处
《建筑技术》
2020年第12期1520-1523,共4页
Architecture Technology
基金
国家自然科学基金项目(51508520)
河南省住房城乡建设科技计划项目(K-1817,K-1818,K1816,K-1940)
关键词
盾构隧道
叠加下穿
三面围合
地下结构
数值模拟
shield tunnel
superposition underneath
enclosed on three sides
underground structure
numerical simulation
