Experimental Study for Load-Settlement Behavior of Flat and Shell Footings on Sandy Silt Soil

Shell foundations are often used to raise the carrying capacity of a structure on weak soils. In cases where large superstructure loads must be transferred poorer soils, shell more cost-effective than ordinary shallow foundations. Advances in study and design shell-type have shown their superiority over traditional footings The current aims investigate shape’s influence ultimate load capacity. Seven footing types’ models were created along with an appropriate testing box. soil needed for was from region north Mosul city, classified as silt low plasticity (sandy silt) soil. A laboratory model experimentally determined capacities inverted upright conical, pyramid, hemispherical silty achieved results associated those conventional flat squares circles. According findings, “upright conical” has 12.7 kN, higher other foundations, its efficiency 51%. When comparing pyramidal” better settling characteristics settlement factor 0.017. As decreases, foundation begins behave like foundation, which reduces maximum foundation.