›› 2006, Vol. 27 ›› Issue (S1): 711-714.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Sensitive factor analysis of landslide stability based on norm gray relational grade

ZHU Liang-feng1, 3, LI Jian2, PAN Xin1, WU Xin-cai3   

  1. 1. Key Laboratory of GISciences for Ministry of Education, East China Normal University, Shanghai 200062, China; 2. School of Civil Engineering, Shandong University, Jinan 250061, China; 3. Faculty of Information Engineering, China University of Geosciences, Wuhan 430074, China
  • Received:2006-04-10 Published:2006-12-15

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Abstract: Gray correlation model can be applied to the sensitive factor analysis of landslide stability; but the traditional approach for computing gray relational grade, which is based on average values, may obliterate information of the specific characteristics of gray coefficients, and possibly make miscalculation of the order relationship with whole approximation. The norm gray relational grade has a better approximation than the traditional approach; and it can express the specific characteristics of gray correlation coefficients. The norm gray relational grade is used to analyze sensitive factors that control the stability of the landslide; and the weight coefficients of each sensitive factor can be calculated. A case study of Tutaizhen landslide in Chongqing Municipality indicate that the shear strength parameters of the sliding surface are the key factors influencing the stability; and the actions of the earthquake and the groundwater are nonessential to the stability of Tutaizhen landslide.

Key words: landslide stability analysis, norm gray relational grade, sensitivity, influencing factor, weight coefficient

CLC Number: 

  • O 159
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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