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一些复杂结构,当缺少适当的计算方法,或基础资料不足,不能进行精确分析时,设计中的比较方法便成为一个重要课题。土力学地基问题存在不定因素尤多,地区性强,需要依赖丰富经验进行判断。其中粉砂震动液化问题特别复杂,当前国内外都仅能按统计法则给出经验公式。其间很难找出共同规律,这就给如何制订抗液化的合理措施带来困难。本文的比较方法就是为检验措施的安全系数而提出的。设计中采用比较方法将会带来巨大经济效益。
In some complex structures, the comparison method in design becomes an important issue when there is a lack of appropriate calculation methods or there is insufficient basic data to perform accurate analysis. There are many uncertain factors in the soil mechanics foundation problems, and they are regionally strong and need to rely on abundant experience to make judgments. The problem of the liquefaction of silt shakes is particularly complicated. At present, domestic and foreign countries can only give empirical formulas based on statistical rules. In the meantime, it is difficult to find common rules, which makes it difficult to formulate reasonable measures against liquefaction. This article’s comparison method is proposed to test the safety factor of the measure. Using comparative methods in design will bring huge economic benefits.