ESTIMATION OF WARPING OF CCP IN COLD REGION BASED ON TAGUCHI-GRA THEORY
The CCP temperature and humidity warping prediction model is established and the accuracy is tested for eliminating the errors caused by subjective factors in judgment progress of CCP temperature and humidity warp-ing weight in cold regions,in which Taguchi-GRA theory is used to determine the weight of each factor.Tagu-chi-GRA theory objectively determines the weight of various factors affecting the warpage of cement pavement.The effectiveness of the equivalent temperature gradient,and the length and relative elastic modulus on the warpage of slab is greater than that of other indexes.The overall accuracy of warpage prediction model based on CFEM-GRA theory is large and the average relative error is less than 10%.The results indicate that the estimation model is bene-ficial to the selection combination of slab size,base and subgrade filling materials at the initial stage of the project.
cement pavementTaguchi-GRA theorytemperature-humidity warpageprediction model
NETL
NSTL
万方数据
