›› 2012, Vol. 33 ›› Issue (S2): 111-117.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Calculation charts for estimating safety factors of 3D homogeneous slopes

LU Kun-lin, ZHU Da-yong, YANG Yang   

  1. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China
  • Online:2012-11-22 Published:2012-12-11

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Abstract: A series of calculated curves for computing the safety factor of 3D soil slopes are presented here, in light of the analysis process of the 3D limit equilibrium solution to the slope stability is too complex to be widely used. The safety factors of 36864 homogeneous slopes were calculated in advance by using the 3D limit equilibrium solution with a simplified 3D slip surface. And a series of calculated curves were obtained based on these calculation results. According to the curves, the safety factor can be quickly obtained, which is more accurate and reasonable than the 2D analysis. And also the soil strength parameters of the slip surface can be got by back analysis, which overcome the disadvantage that the soil strength parameters obtained by 2D analysis are higher than practical values. The study provides a simple and practical method to the 3D slope stability analysis.

Key words: geotechnical engineering, slope, 3D, factor of safety, calculation charts

CLC Number: 

  • TU472
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