Testing Research on Moisture Content Effect to Safety of Highway Slope Subgrade

Abstract

Based on the dynamic monitoring of the moisture content of highway slope subgrade and the corresponding shear strength test, the safety analysis model of slope subgrade was established. Based on the model, the influence of different water content on the subgrade in the test section was analyzed. The results showed that under different moisture content conditions, the safety factor of slope subgrade is obviously different. The moisture content of slope subgrade is dynamically changed after the subgrade filling. The slope safety factor decrease with increase of the moisture content of subgrade, and the slope safety factor is the highest under the condition of the best moisture content.