Study of Uniform Orthogonal Design to Fine-Grained Soil under Freezing and Thawing Cycle

Seasonal changes in the fine-grained soil conditions caused by the freeze-thaw cycle of their physical and mechanical properties of the changes to the actual construction harm. Through indoor uniform orthogonal test explore and study the fine-grained soil in different water content, density, soluble salt content and clay content conditions, the different cycles of freezing and thawing, use direct shear tests measured fine-grained soil C, Φ value, PPR use of the test results obtained on the fine-grained soil test C, Φ value on the importance of scheduling changes.