›› 2017, Vol. 38 ›› Issue (8): 2249-2260.doi: 10.16285/j.rsm.2017.08.013

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Dynamic response characteristics of slope surface and rock-soil boundary in deposit slope

LIANG Jing-xuan1, HU Xie-wen1, 2, YE Zheng-hui1, LUO Gang1, DIAO Ren-hui1, MA Hong-sheng3   

  1. 1. Engineering Laboratory Combined with National and Local of Spatial Information Technology of High Speed Railway Operation Safety, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; 2. School of Geosciences and Environment Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China; 3. Sichuan Provincial Transport Department Highway Planning, Survey, Design and Research Institute, Chengdu, Sichuan 610041, China
  • Received:2016-12-26 Online:2017-08-11 Published:2018-06-05
  • Supported by:

    This work was supported by the National Natural Science Foundation of China(41372293, 41672283), the Science Research Project of Sichuan Province Land and Research Department(KJ-2014-10, KJ-2015-18, KJ-2016-8), the Program for Changjiang Scholars and Innovative Research Team in University(PCSIRT) and the Undergraduate Research Project Funding(Sichuan Transportation Construction of Science and Technology)(2015A1-3).

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Abstract: Under the action of earthquake, the deformation and failure mode of the deposit slope depends on many factors. To study the influence of the inclination of slope surface and rock-soil boundary on the dynamic response of the deposit slope, a model test using a horizontal shaking table was conducted to simulate the failure process and dynamic response of the deposit slope under different inclination conditions. The results show that the failure mode of the deposit slope was controlled by both slope surface and rock-soil boundary. When the dip angle of the rock-soil boundary was in a certain extent (less than 20°), only local collapse in the slope occurred. As the dip angle of the rock-soil boundary increased, the failure mode of the deposit slope gradually turned from local collapse to entire sliding. Moreover, the inclination of slope surface controlled the extent of collapse.

Key words: deposit slope, earthquake, dynamic response, deformation and failure mode

CLC Number: 

  • TU 473

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