Fuzzy evaluation method of scouring stability on soil subgrade slope
Wang Bing-gang · Zhongguo gonglu xuebao · 2005
Based on a synthetical study on the influence factors of scouring stability, the fuzzy evaluation method of scouring stability on soil subgrade slope is put forward. First, the authors select 18 judgment indexes, and establish a numerical method on them in which 4 types subordinate functions with 16 mathematical expressions are set up to describe the continuous indexes, and experiment methods are used to deal with dispersion indexes. Then, the authors adopt expert-giving-marks method to define the weight coefficients of these judgment indexes. A fuzzy evaluation model is set up and 2 types of evaluation principles are proposed. Finally, the engineering example is analyzed by the method. On the results, the correctness and effectiveness of fuzzy evaluation method of scouring stability on soil subgrade slope are proved.