Numerical Investigation on the Mechanical Characteristics of a Special-Shaped Shield Lining with a Large Cross-Section

被引：0
|
作者：
Zhu, Yeting [1 ,2 ]
Zhang, Zixin [1 ]
Huang, Xin [1 ]
Zhu, Yanfei [2 ]
机构：
[1] Tongji Univ, Dept Geotech Engn, Shanghai 200092, Peoples R China
[2] Shanghai Tunnel Engn Co Ltd, Shanghai 200233, Peoples R China
来源：
PROCEEDINGS OF GEOSHANGHAI 2018 INTERNATIONAL CONFERENCE: TUNNELLING AND UNDERGROUND CONSTRUCTION | 2018年
关键词：
Special-shaped shield; Prototype test; Shell-spring model; Mechanical characteristic; TUNNEL;
D O I：
10.1007/978-981-13-0017-2_39
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A shell-spring finite element model of a special-shaped tunnel was established to investigate the distribution of internal forces and deformation mode of the lining at the designed buried depth. The numerical results were compared with prototype loading test results and uniform beam model, which showed that the shell-spring model can be an optimal model to calibrate the 3D distribution of the internal forces and deformations of the special-shaped tunnel. Finally, the internal forces in the design condition were given. Furthermore, the economy and mechanical property of a special-shaped tunnel were compared with circular and rectangular tunnels with the same dimension and joint parameters. Results showed that the proposed special-shaped tunnel was more suitable for shallow overburden ground.
引用
收藏
页码：384 / 391
页数：8
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