Aseismic Performance Analysis of Composite Lining Embedded in Saturated Poroelastic Half Space

被引:17
作者
Ding, Haibin [1 ]
Tong, L. H. [1 ]
Xu, Changjie [1 ]
Hu, Wentao [2 ]
机构
[1] East China Jiao Tong Univ, Engn Res & Dev Ctr Underground Technol Jiangxi Pr, Nanchang 330013, Jiangxi, Peoples R China
[2] East China Jiao Tong Univ, Sch Civil Engn & Architecture, Nanchang 330013, Jiangxi, Peoples R China
基金
中国国家自然科学基金;
关键词
Aseismic performance; Biot theory; Composite lining; Dynamic response; Saturated poroelastic half space; DYNAMIC STRESS-CONCENTRATION; CIRCULAR LINED TUNNEL; PLANE-WAVES; IMPERFECT INTERFACE; MOUNTAIN TUNNELS; SCATTERING; PROPAGATION; DIFFRACTION; PIPELINE; CAVITY;
D O I
10.1061/(ASCE)GM.1943-5622.0001787
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Earthquakes have been found to seriously threaten the structure of tunnels. To study the seismic performance of a composite lining embedded in a saturated poroelastic half space under an incident P wave, an analytical model is established based on Biot theory, and the solutions are obtained utilizing the wave function expansion method. The dynamic stress concentration factor (DSCF) is introduced to describe the dynamic stress state in the composite lining. The dynamic stress of the composite lining is compared with that of a single lining, indicating that the composite lining can reduce the lining dynamic stress significantly. Subsequently, the influence of the dimensionless input frequency, incident angle, thickness, and stiffness and the buried depth of the composite lining on the aseismic performance of the composite lining are discussed. The conclusions obtained in this study might provide a beneficial guideline for composite lining design in tunnel engineering.
引用
收藏
页数:16
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