›› 2012, Vol. 33 ›› Issue (2): 515-523.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental research on seismic failure mode and supporting for slope of bedrock and overburden layer

ZHAO An-ping1, 2, FENG Chun1, LI Shi-hai1, AI Chang1, LIU Yang1   

  1. 1. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; 2. Institute of Geology & Geophysics, Chinese Academy of Sciences, Beijing 100029, China
  • Received:2010-08-24 Online:2012-02-10 Published:2012-02-14

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Abstract: According to the site investigation of Wenchuan disaster area’s statistics data as the background, the experiment model is made selecting Yugongmiao slope as the reference. The similarities of main parameters are analyzed based on dimensional analysis. The underwater blasting is used to simulate seismic wave (near-field), and a large number of model tests are conducted. The results show that the failure model of bedrock and overburden layer slope under seismic loading is surface loose media flowing caused by the tension of superficial layer, and with the increase of explosives (seismic intensity), seismic accelerations increase. It is very useful to design of gravity retaining wall and pile-wall structures. These conclusions can provide some bases for analysis and research of high-steep slopes along railways and highways.

Key words: underwater blasting, bedrock and overburden layer slope, pile wall, gravity retaining wall, acceleration, soil pressure, seismic intensity

CLC Number: 

  • TU 457
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