Dynamic response of deep circular composite-lined tunnel in saturated soil subjected to incident SV waves

被引：0
|
作者：
Song J.-B. [1 ]
Song R. [2 ]
机构：
[1] Jiangxi V & T College of Communication, Nanchang
[2] Nanchang Institute of Technology, Nanchang
来源：
Song, Rui (songruio935@qq.com) | 1600年 / Nanjing University of Aeronautics an Astronautics卷 / 33期
关键词：
Circular lining; Composite linings; Deep buried; Saturated soil; SV wave;
D O I：
10.16385/j.cnki.issn.1004-4523.2020.02.019
中图分类号：
学科分类号：
摘要：
Based on wave function expansion method, an analytical solution for dynamic stress concentration of the composite lining in saturated soil under incident SV waves is obtained. The solutions are verified by degenerating the studies of saturated medium into elastic medium and single lining. According to the solution, the internal dynamic stress concentration factor is larger than the outer boundary of the composite lining in saturated soil. The reasons are that the stiffness of internal lining is larger than outer lining and volley boundary of internal lining. Increasing the thickness of outer lining and inner lining can reduce the dynamic stress concentration factor of the lining obviously. The stiffness of the composite lining affects the dynamic stress concentration factor of the lining greatly. The stiffness difference between internal and outer lining should be reduced to weaken the scaling effect in the case of guaranteeing stability of internal and outer lining. © 2020, Nanjing Univ. of Aeronautics an Astronautics. All right reserved.
引用
收藏
页码：383 / 390
页数：7
相关论文
共 15 条
  • [1] Pao Y.H., Mow C.C., Achenbach J.D., Diffraction of Elastic Waves and Dynamic Stress Concentrations, (1973)
  • [2] Lee V.W., Response of tunnels to incident SH waves, Journal of Engineering Mechanics, 105, 4, pp. 643-659, (1979)
  • [3] Lee V.W., Karl J., On deformation near a circular underground cavity subjected to incident plane P waves, European Earthquake Engineering, 7, 1, pp. 29-41, (1993)
  • [4] Xu H., Li T.B., Xu J.S., Et al., Dynamic response of underground circular lining tunnels subjected to incident P waves, Mathematical Problems in Engineering, 4, pp. 1-11, (2014)
  • [5] Hasheminejad S.M., Avazmohammadi R., Dynamic stress concentrations in lined twin tunnels within fluid-saturated soil, Journal of Engineering Mechanics, 134, 7, pp. 542-554, (2008)
  • [6] Zhong Q.-K., Dynamic response analysis of underground cylindrical composite-lining cavern subjected to seismic waves, (2009)
  • [7] Jiang L.F., Zhou X.L., Wang J.H., Scattering of a plane wave by a lined cylindrical cavity in a poroelastic half-plane, Computers & Geotechnics, 36, 5, pp. 773-786, (2009)
  • [8] Xu C.-J., Ding H.-B., Tong L.-H., Et al., Scattering wave generated by the cylindrical lining in saturated soil based on the nonlocal-Biot theory, Chinese Journal of Geotechnical Engineering, 40, 9, pp. 1563-1570, (2018)
  • [9] Li W.-H., Zhang Z., Scattering of transient plane waves by deep buried cylindrical lining cavity in saturated soil, Chinese Journal of Geophysics, 56, 1, pp. 325-334, (2013)
  • [10] Lin C.H., Lee V.W., Todorovska M.I., Et al., Zero-stress, cylindrical wave functions around a circular underground tunnel in a flat, elastic half-space: Incident P-waves, Soil Dynamics & Earthquake Engineering, 30, 10, pp. 879-894, (2010)
12