摘要
本文试图用模糊数学的理论和方法对粘性土的液化进行综合的评判和预测。在评判中,考虑了影响基土液化的六大因素,并在假设各因素对液化势影响呈线性变化的条件下,建立了相应的隶属函数,首次提出了临界隶属度和许可隶属度的概念。在此基础上同时指出,可以用实际隶属度与许可隶属度进行比较,进而判别和预测基土是否发生液化。并且从实际隶属度与许可隶属度的差别上间接判别基土液化的程度。
This paper is trying to apply the theory and method of fuzzy mathematics to the synthetic judgement and predication of cohesive soil liquefactions.In this paper the authors have considered the main six factors affecting the liquefaction and supposed that there is a linear relationship between each factor and the tendency of liquefaction,thus establishing a corresponding function of membership and giving the concept of critical grade of membership and allowable grade of membership for the first time.Based on this,it is pointed out that whether the liquefaction of cohesive soil takes place can be judged and predicated by comparing the practical grade of membership with the allowable grade of membership.In addition,the level of liquefaction can also be judged indirectly through the difference between the practical grade of membership and allowable grade of membership.
