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一、前言目前我国,判定场地饱和砂土地震时是否可能产生液化,多根据已发生地震区的液化与非液化场地的资料进行总结分析,得出经验判别式,并依此给出场地饱和砂土产生液化的临界值,然后用实测值与之对比进行预测,其结果是解决是与非,即液化与非液化的判定问题,但对液化的程度如何,则由于问题的复杂性和工程实例的局限性讨论甚少。本文就这一问题用模糊集合论的方法进行一些探讨。
I. INTRODUCTION At present, in China, whether or not liquefaction is likely to occur when a site-saturated sand-earthquake earthquake occurs, most of them are summarized and analyzed based on the liquefaction and non-liquefied sites in the earthquake area. The empirical discriminant formula is obtained and the site-saturated sand is given. The critical value of liquefaction produced by soil is then predicted by comparison with the measured value. The result is to solve the problem of NAND and liquefaction, but the degree of liquefaction is due to the complexity of the problem and engineering examples. There are very few discussions about the limitations. This article discusses this issue using fuzzy set theory.