›› 2009, Vol. 30 ›› Issue (4): 897-902.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Dynamic centrifuge modeling of piles-reinforced slope on saturated sandy foundation

LI Rong-jian 1, 2，YU Yu-zhen2，LÜ He2，LI Guang-xin2   

  1. 1. Institute of Geotechnical Engineering , Xi’an University of Technology, Xi’an 710048, China； 2. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2008-11-20 Online:2009-04-10 Published:2011-01-30

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Abstract:

By using the copper model piles and silicon oil instead of water, the centrifuge modeling dynamic response of soil slope reinforced with one row of piles on saturated foundation during earthquake was conducted. Based on the test results, the characteristics of the seismic response of pore pressure in foundation, acceleration in soil and moment in piles during earthquake were investigated. According to the observation and analysis, it can be concluded that the accumulation of excess pore pressure in saturated sand foundation, especially liquefaction not only makes the bending moment of pile increase as much as 87 % but also weakens the acceleration response in the slope.

Key words: slope, saturated foundation, stabilizing pile, modeling test, dynamic centrifuge modeling, seismic response, liquefaction

CLC Number: 

  • TU 470
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