Bearing Capacity of Strip Footings Located on Grouted Soil Slopes Amir Sajad Abedi Ph.D. student, Department of Civil and Environmental Engineering, Shiraz University, Shiraz, IRAN Nader Hataf Professor, Department of Civil and Environmental Engineering, Shiraz University, Shiraz, IRAN e-mail: amirsa.abedi@yahoo.com ABSTRACT Stability of strip footings located on soil slopes with low bearing capacity is an important problem for engineers. Grouting is one of the most effective soil stabilization methods to mitigate such issues as it. Grouting increases soil strength and stiffness. The behavior of strip footing based on grouted sand slope is the focus of this paper. Several laboratory tests were conducted in order to compare the test results with those from finite element models which were modeled using finite element method. Several tests were performed so that the effect of grouted depth on bearing capacity could be determined. It was shown that the most cost- effective grouting depth is 2B, where B is the footing width. The results of numerical modeling also demonstrated that if the grouting depth exceeds 2B, bearing capacity will not increase significantly. KEYWORD: Slope, Grouting, Bearing capacity I NTRODUCTI ON Since 1955s, there has been growing interest in calculating bearing capacity of strip foundation near slope. Meyerhof (1957) indicated that for a foundation located on or near the slope the plastic zone on the side of the slope is relatively smaller than those of similar foundation on leveled ground and thus the ultimate bearing capacity of the foundation is correspondingly reduced. He suggested that the bearing capacity of strip footing can be expressed as:  , =   + 1 2     where   is a coefficient reperesenting the combined effect of the cohesion of the soil and the overburden pressure and   is a coefficcient reperesenting the combined effect of the shear resistance of the soil bellow the foundation and the overburden pressure. Shields et al. (1977) have conducted series of tests to compute the bearing capacity factor   for a footing in cohesionless soil slopes. The tests were conducted in a large sand box - 16827 -