STABILIZING SLOPES OF SOFT COHESIVE SOIL WITH LIME COLUMNS

The main purpose of this paper is to study the effect of using piles and lime treatment in stabilizing the embankments of Al-Salam Canal in Northern Egypt. As a result of the soft nature of the left side embankment formation, sudden and progressive failures took place over years, in addition to the existence of gypsum and peat pockets and thin layers within the slope in many locations. Thus, it was suggested to use reinforced concrete piles to stabilize the left side embankment of the canal. Analysis of the slope is performed using finite element analysis. Stabilizing the left side embankment with piles was not that effective in increasing the slope safety factor. Thus, another slope stabilizing technique is studied using lime treatment. The proposed lime treatment technique was effective in stabilizing the slope more than the slope stabilizing piles in the zones containing the peat layer.