Geotechnical constitutive model engineering recommendation method

The invention relates to a rock-soil constitutive model engineering recommendation method which comprises the following steps: S10, establishing an evaluation index system which comprises two levels of indexes, namely a first-level index and a second-level index arranged below the first-level index; s20, establishing an index scoring system according to the evaluation index system, and scoring the first-level indexes; s30, determining an engineering calculation precision requirement; s40, determining a weighted value of the first-level index according to an engineering calculation precision requirement; and S50, performing weighted calculation on the first-level indexes according to the weighted values of the first-level indexes, and recommending the constitutive model according to a calculation result. According to the engineering recommendation method for the rock-soil constitutive model, recommendation can be provided for reasonable selection of the constitutive model in numerical analysis, a reasonable co