J4 ›› 2011, Vol. 41 ›› Issue (4): 1110-1115.

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Application of Extension Theory Evaluation Model Based on Optimal Combination Weighting Law

ZHANG Yi-chen1,2,NAI Lei1, MENG Fan-qi1 |WANG Yan-liang2,WANG Jie-yu2,WANG Li-chun2   

  1. 1.College of Construction Engineering|Jilin University|Changchun130026|China;
    2.Jilin Institute of GeoEnvironment Monitoring, Changchun130021|China
  • Received:2010-09-08 Online:2011-07-26 Published:2011-07-26

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Abstract:

Division of geological-hazard-prone area has important significance for scientific geological disaster prevention. Based on the theory of hazard-prone area division, seven evaluation indexes such as quantity of hazard points, topography and geomorphology, geological structure, rock and soil mass type, multi-year average precipitation, vegetation coverage ratio and human engineering activities were put forward. The weight coefficient was determined by putting preference ratio method and entropy method into optimal combination, which was applied into the evaluation of extension theory. A new model of geological-hazard-prone area division named optimal systems weighting law was proposed. The result shows that the division of geological-hazard-prone area of Jilin Province coincides with the practical situation.

Key words: Jilin Province, weighting coefficients, extension theory evaluation model, geological-hazard-prone area, optimal systems

CLC Number: 

  • P694
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