Concrete structure durability prediction method based on random forest and intelligent algorithm
A technology of concrete structure and random forest, applied in the direction of neural learning methods, calculations, calculation models, etc., can solve the problems of large dispersion of experimental observation data, long experimental period, unreliable prediction results, etc., to solve the problem of unstable prediction results, The effect of solving computational complexity and good anti-interference ability
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[0077] The method that the present invention proposes based on the least squares support vector machine prediction concrete structure impermeability of random forest mainly comprises the following steps:
[0078] (1) Sample data collection of influencing factor index system
[0079] Based on cement strength, cement dosage, fly ash dosage, superplasticizer dosage, fine aggregate dosage, coarse aggregate dosage, concrete strength, sand ratio, water-binder ratio, water dosage, alkali content, mud content, needles, flakes There are 14 factors including the total particle content and average particle size as the input variable, and the chloride ion diffusion coefficient of concrete as the output variable. The 33 groups of monitored data are selected as the original training data set. The data are shown in Table 1:
[0080] Table 1 sample data
[0081]
[0082] (2) Random forest feature selection
[0083]Divide all data samples into two parts, the training data set with a capac...
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