THE EFFECTS OF GROUNDWATER ON STABILITY IN GRAVEL SOIL SLOPES

The groundwater has many effects on stability in gravel soil slopes. There are some different views on how to consider the effects of the pore water pressure and the penetration on stability assessment. This paper focuses on the different effects of the pore water pressure and the penetration in the stability calculation. Based on the results of the analysis on the Xiwulu slope in Badong county, it's more effective and available to consider the penetration and the effective bulk density below the saturation line in the heavy rain conditions. In some standards, the pore water pressure and the penetration are both considered on the stability calculation is inappropriate.