›› 2010, Vol. 31 ›› Issue (12): 3816-3822.

• Geotechnical Engineering • Previous Articles     Next Articles

Generalized slice method for stability analysis of slope with non-circular slide face under multipoint and multidirection seismic ground motions

GAO Yu-feng 1, 2, FAN Zhao-ping 1, 2   

  1. 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China; 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China
  • Received:2010-09-07 Online:2010-12-10 Published:2010-12-21

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Abstract:

The uniform seismic ground motion is usually emloyed to analyze the slope stability under earthquake. But in fact the seismic ground motions are varied with time and space. The slope stability under multipoint and multidirection seismic ground motions is an important topic. Based on the generalized slice method of the forces and the moments equilibrium the limit equilibrium equations of slope under multipoint and multidirection are derived; and the method to solve the dynamic safety factor is given. In this derivation, the seismic ground motions under each slice of slope are varied with time and space; and the horizontal ground motions are not fully incoherence with the vertical ones. Finally, two examples are analyzed to verify this method feasibility.

Key words: multipoint and multidirection seismic ground motion, generalized slice method, stability analysis, safety factor

CLC Number: 

  • TU 457
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