Study on shaking table model test of high-speed railway subgrade with active fault vibration and fracture

被引：0
|
作者：
Yan Q. [1 ,2 ]
Mao Z. [2 ]
Wang L. [1 ]
Tang P. [2 ]
机构：
[1] School of Civil Engineering, Beijing Jiaotong University, Beijing
[2] China Railway Fifth Survey and Design Institute Group Co. Ltd., Beijing
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2021年 / 52卷 / 03期
关键词：
Active fault; Double-table model test; Fracture dislocation; Pile-bearing reinforced subgrade; Sticky slip earthquake;
D O I：
10.11817/j.issn.1672-7207.2021.03.023
中图分类号：
学科分类号：
摘要：
Through double-table vibration test of high-speed railway subgrade considering the effect of fault vibration and fracture, the stress and deformation properties of high-speed railway pile-bearing reinforced subgrade crossing active fault were investigated, including acceleration response, pore-water pressure, pile-soil stress, pole strain, slope displacement, settlement, etc., and the working state of high-speed railway subgrade through active fault was analyzed. The results show that strike-slip fault movement affects the high-speed subgrade and foundation more severely than thrust movement, and the combined action of both will generate coupling effect and intensify subgrade force and deformation. In order to respond foundation liquefaction, subgrade spanning active fault must be paied attention to and effective drainage measures must be taken. Fault displacement above medium earthquake magnitude will cause obvious affection on working performance of whole-section reinforced subgrade, and the maximum settlement amount of formation level can reach more than 1.2 m. © 2021, Central South University Press. All right reserved.
引用
收藏
页码：913 / 924
页数：11
相关论文
共 20 条
  • [1] WANG Jian, Research on damage mechanism under earthquake and seismic technique of subgrade engineering, pp. 20-30, (2010)
  • [2] JIANG Shuping, JIANG Hua, WANG Xiaowen, Et al., Design test scheme of large-scale shaking table model for tunnel outlet of highway tunnel in seismic region with strong motion, Highway, 54, 10, pp. 245-249, (2009)
  • [3] PRASAD S K, TOWHATA I, CHANDRADHARA G P, Et al., Shaking table tests in earthquake geotechnical engineering, Current Science, 87, 10, pp. 1398-1404, (2004)
  • [4] LADE P V, COLE D A, CUMMINGS D., Multiple failure surfaces over dip-slip faults, Journal of Geotechnical Engineering, 110, 5, pp. 616-627, (1984)
  • [5] COLE D A, LADE P V., Influence zones in alluvium over dip-slip faults, Journal of Geotechnical Engineering, 110, 5, pp. 599-615, (1984)
  • [6] ZHAO Dajiang, Ground deformation due to asymmetric slip of the Kunlun fault simulated by dislocation model, College of Geological Engineering and Geomatics, pp. 28-45, (2008)
  • [7] OKADA Y., Surface deformation due to shear and tensile faults in a half-space, Bulletin of the Seismological Society of America, 75, 2, pp. 1018-1040, (1985)
  • [8] BRAY J D, SEED R B, SEED H B., Analysis of earthquake fault rupture propagation through cohesive soil, Journal of Geotechnical Engineering, 120, 3, pp. 562-580, (1994)
  • [9] LIU Zhaosheng, Seismic design of embankment, pp. 45-55, (2011)
  • [10] ASSIMAKI D, GAZETAS G., Soil and topographic amplification on canyon banks and the 1999 Athens earthquake, Journal of Earthquake Engineering, 8, 1, pp. 1-43, (2004)
12