|
Title |
A Study on the Methods to Calculate Mixed Weights of the Condition Evaluation of Rock Slope
|
|
Authors |
변요셉(Yoseph Byun) ; 최정찬(Jungchan Choi) ; 성주현(Joohyun Seong) |
|
DOI |
https://doi.org/10.11112/jksmi.2018.22.6.037 |
|
Keywords |
절리암반 비탈면 ; 주관적 가중치 ; 목표 가중치 ; 혼합 가중치 Rock slopes ; Subjective weighting ; Objective weighting ; mixed weighting |
|
Abstract |
This study proposed the modified weighting values for jointed rock slopes. The studies on deduction of evaluation index and calculation of weighting, development of criteria for evaluation and evaluation models have been conducted through decision making techniques such as the Delphi method and the AHP method by many researchers. Because these decisions making techniques may be less objective, it is necessary to calculate reasonable weighting considering both an objective weighting and a subjective weighting simultaneously. In this study, utilizing the inspection data of jointed rock slopes, an objective weighting that the concept of entropy is applied was calculated. And the subjective weighting values by AHP technique was calculated based on the opinion of experts. And a modified weighting was suggested by combining the two. As a result, it was found that jointed rock slopes have higher weighting in artificial factors and the damage status items. In addition based on the finally suggested weighting (mixed weighting), the revised evaluation criteria could be presented by converting it into the evaluation score (76 points). And it is expected that it could be usefully utilized upon inspections on cutting slopes and safety diagnosis since objective and highly reliable criteria compared to the condition evaluation criteria that are currently used could be presented through the results of the study.
|