Study on Shrinkage Characteristics and the Law of Crack Propagation of Compacted Red Clay

摘要

The red clay has high moisture content, high plasticity, high void ratio and other special engineering properties, especially when the subgrade surface dehydrates, it shrinks and cracks, caused the subgrade to have some diseases. Taking the subgrade filling from Liupanshui inner Expressway as the research object, doing the shringkage test to the red clay, measuring the shrinkage deformation and the crack characteristics of the red clay during the shrinkage process, got the law of the shrinkage deformation and evolution of the crack of the red clay under shrinkage condition.