轻亚粘土地震液化等级的多指标可拓综合评判  

Comprehensive Multi-factorial Extension Evaluation for Grading Seismic Liquefaction of Light Loam

作　　者：周先齐 陈荣淋[2] ZHOU Xianqi;CHEN Ronglin(School of Civil Engineering & Architecture, Xiamen University of Technology, Xiamen 361024, China;College of Civil Engineering, Huaqiao University, Xiamen 361021,China)

机构地区：[1]厦门理工学院土木工程与建筑学院,福建厦门361024 [2]华侨大学土木工程学院,福建厦门361021

出　　处：《厦门理工学院学报》2019年第3期73-78,共6页Journal of Xiamen University of Technology

基　　金：国家重点研发计划资助项目(2017YFC0806007);厦门市科学计划资助项目(3502Z20183071);厦门理工学院高层次人才项目(YKJ15040R)

摘　　要：为更好地解决轻亚粘土地震液化等级评判中评价指标间的不相容问题,基于可拓学理论建立轻亚粘土地震液化等级的多指标综合评判方法:依据现场调查的历史数据和经验总结,划分轻亚粘土的地震液化等级,并建立含有影响轻亚粘土地震液化等级的各评价指标的经典域和节域矩阵,将待评轻亚粘土土样具体量值构成的待评物元代入可拓集合中进行多指标综合评判,通过计算和比较待评轻亚粘土土样与各地震液化评判等级的关联度大小来确定其评判等级。工程应用结果表明,基于物元理论和可拓集合理论进行轻亚粘土地震液化等级的综合评判,既可以从定性和定量角度评判液化等级,也能够较为客观地反映各评价指标对评判结果的贡献权值。Based on the historical data and experience of field survey, the seismic liquefaction grade of the light loam was divided, a set of matter elements containing the classical domain and the nodel domain matrix of the evaluation indicators for the seismic liquefaction grade of light loam was established, the matter elements to be evaluated, which were composed of the specific evaluation index value of the light loam samples, was substituted into the extension set for multi-factorial comprehensive evaluation, and the judging results were determined by calculating and comparing the correlation degree between the light loam samples and each evaluation grade of seismic earthquake liquefaction.Results of engineering application show that the comprehensive evaluation method for the seismic liquefaction grade of light loam, which was established on matter-element theory and extension set theory,can not only judge the liquefaction grade problem from the qualitative and quantitative perspectives, but also objectively reflect the contribution weight of each evaluation factor.

关 键 词：轻亚粘土 地震液化 多指标 可拓评判 物元模型 

分 类 号：TU435[建筑科学—岩土工程]