Analysis of Debris flow Hazard Based on Improved Analytic Hierarchy Process and Extenics Theory
Liping Sun · Journal of Water Resources and Architectural Engineering · 2010
The analytic hierarchy process is improved by rough set theory to reduce the interference of human factor when determining the weights.Then the extenics theory is used to resolve the contradiction between the uncertainty of mud-rock flow system and the certainty of the system,and the relationship of evaluation factors and criteria is extended to the distances between them,which could describe the quantitative characteristics of the debris flow system.At the same time,a new system for evaluating the debris flow hazard is established.According to the calculation for examples,the results fit with the actual situations,which could prove the scientific and practical nature of this method.