›› 2009, Vol. 30 ›› Issue (2): 352-356.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Studies of sensibilities of influence factors on critical height of reinforced steep slope

YANG Qing 1, 2, FENG Xiao-jing1, LUAN Mao-tian 1, 2, XIAO Cheng-zhi3   

  1. 1. Institute of Geotechnical Engineering, School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China; 2. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China; 3. School of Civil Engineering, Hebei University of Technology, Tianjin 300310, China
  • Received:2007-07-10 Online:2009-02-10 Published:2011-01-27

Abstract:

Based on the fundamental theory of upper-bound limit analysis of plasticity, the limit heights and stability coefficients of the reinforced steep slopes with different slope angles, top slope angles, internal friction angles, cohesive, reinforcement tension strengths, reinforced spacing, reinforcement arrangement, unit weights, seismic intensities and additional loads are calculated based on a code written by the authors. The sequence of sensibilities is listed; and the results show that the internal friction angle and earthquake are the key factors that influencing the critical heights of the reinforced steep slope. Whereas, the sensibility of cohesive is descend contrast to the gentle slope. Therefore, the emphasis should be placed on the selection of the internal friction angle for steep slope and the effect of earthquake as well.

Key words: reinforced slope, limit analysis, sensibility

CLC Number: 

  • TU 413.6+2
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