论述了场地地震效应的表现形式，影响砂土液化的主要因素和砂土液化危害的主要特点。
The characteristics of site seismic effect, the mainly factors of liquefied sandy soil and its dangers are discussed in the paper.
由于影响砂土液化的因素太多，而且许多的判别条件不容易获取，应用模糊理论判别砂土液化是比较合理的方法。
Because there are many impact factors, and some judgment conditions are not easy to obtain, the application of Fuzzy theory to distinguish sandy soil liquefaction is a fairly reasonable approach.
通过分析砂土液化成因及其影响因素，建立了砂土液化预测r BF网络模型，并与BP网络预测模型进行比较。
By analyzing the causes and contributing influences of sands liquefaction potential, the RBF neural network model for prediction is set up and compared with the BP network.
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