Method for constructing soil freezing characteristic curve prediction model

The invention discloses a method for constructing a soil freezing characteristic curve prediction model, belongs to the technical field of geotechnical engineering, can quickly obtain unfrozen water contents in different continuous physical states by using several groups of test results, and performs indoor tests and deduction of mutual relationships based on a plurality of initial water contents, so as to obtain a soil freezing characteristic curve prediction model. A prediction model based on the unfrozen water of the cohesive soil is provided, the content of the unfrozen water under any freezing temperature condition in a conventional freezing state can be calculated only through two conventional physical parameters including the initial water content and the temperature, and the method has the advantages of being efficient and convenient to use. The analysis on factors such as particle size content and mineral composition of the soil body is not needed, so that complicated and expensive experimental equip