Research on the application of cloud model in the suitability evaluation of the development and utilization of underground space
In the evaluation of urban underground space development and utilization suitability,the tradi-tional fuzzy integrated hierarchical analysis method relies too much on experts and personal experience,which is too subjective and makes it difficult to guarantee the accuracy of evaluation results.In response to the characteristics of fuzziness and uncertainty in suitability evaluation,a finite interval cloud model(CM)was introduced to improve the analytic hierarchy process(AHP),and the CM-AHP weight assignment method was constructed,which can quickly and accurately complete the weight calculation of expert group decision and make the weight results more objective and reliable.Secondly,the cloud model combined with the principle of maximum subordination and the fuzzy comprehensive evaluation method were used to eval-uate the suitability of underground space in the study area.The results are as follows:CM-maximum mem-bership evaluation model is found to be more suitable for the evaluation of the suitability of underground space with perfect test data and accurate quantification and grading,which ensures the scientific evaluation results while preserving the randomness and fuzziness of the evaluation results;CM-fuzzy comprehensive e-valuation model is applicable to the comprehensive evaluation where multiple decisions are made and the in-dexes are easy to be normalized.
urban underground spacecloud modelanalytical hierarchy processaffiliation degreeevaluation of suitability