CAJ | 학술논문

为解决胀缩性评价过程中模糊指标与随机指标统一处理及定性定量转化问题，探讨了基于云模型理论的胀缩性评价模型。首先基于胀缩性分类标准生成每个评价指标在不同等级的云数字特征，并应用正向正态云发生器模拟实测样本指标值隶属于各等级的确定度，然后结合指标权重获得综合确定度，以最大综合确定度值判定样本的胀缩性等级。最后基于合肥新桥国际机场膨胀土地基处理工程实例来验证该模型的可靠性，并与集对分析、可变模糊集方法和模糊数学方法的判别结果进行了对比分析。结果表明，基于云模型评价膨胀土和改良土胀缩性等级是有效可行的，且预测结果可充分反映现场实际情况。
위해결창축성평개과정중모호지표여수궤지표통일처리급정성정량전화문제，탐토료기우운모형이론적창축성평개모형。수선기우창축성분류표준생성매개평개지표재불동등급적운수자특정，병응용정향정태운발생기모의실측양본지표치대속우각등급적학정도，연후결합지표권중획득종합학정도，이최대종합학정도치판정양본적창축성등급。최후기우합비신교국제궤장팽창토지기처리공정실례래험증해모형적가고성，병여집대분석、가변모호집방법화모호수학방법적판별결과진행료대비분석。결과표명，기우운모형평개팽창토화개량토창축성등급시유효가행적，차예측결과가충분반영현장실제정황。
A shrinkage-swelling property evaluation model based on the cloud model is studied to consider the fuzziness and randomness of evaluation indicators as a whole and to achieve the qualita-tive and quantitative conversion.First,the cloud digital features of each indicator at different levels are generated based on the shrinkage-swelling property classification standard.And the generation al-gorithm of normal cloud is adopted to analyze the certainty degrees of measured indicators to each evaluation standard.Then the comprehensive certainty degrees are obtained according to the meas-ured data and the weights of evaluation indicators,and the swelling-shrinkage grade is determined by the maximum comprehensive certainty degree.Finally,a case of foundation treatment plans of dif-ferent lime contents in the runway area of Xinqiao International Airport in Hefei is used to confirm the reliability of the proposed model.Moreover,a comparison of results with the set pair analysis method,the variable fuzzy sets method and the fuzzy set method is also conducted.It indicates that the model used to classify the shrinkage-swelling grade of untreated and lime-treated expansive clays is feasible and effective,and can well describe the actual situation.