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M98168GE • C2.3 Soil Support Characteristics The soil bearing capacity is a function of; the engineering properties of the soil material supporting the foundations, the foundation width, the depth of embedment of the bottom of the foundation below the lowest adjacent grade, the influence of the ground water, and the amount of settlement tolerable to the structure. Soil bearing capacity and associated minimum depth of embedment are presented in the text of the report. The foundation for the structure should be placed on relatively uniform bearing conditions. Varying support characteristics of the soils supporting the foundation may result in nonuniform or differen- tial performance of the foundation. Soils encountered at foundation depths may contain cobbles and boulders. The cobbles and boulders encounterea at foundation depths may apply point loads on the foundation resulting in nonuniform bearing conditions. The surface of the formational material may undulate throughout the building site. If this is the case it may result in a portion of the foundation for the structure being placed on the formational material and a portion of the foundation being placed on the overlying soils. Varying support material will result in nonuniform bearing conditions. The influence of nonuniform bearing conditions may be reduced by placing the foundation members on a blanket of compacted structural fill. Suggestions and recommendations for constructing compacted structural fill are presented under COMPACTED STRUCTURAL FILL below and in the text of the report. C3.0 COMPACTED STRUCTURAL FILL Compacted structural fill is typically a material which is constructed for direct support of structures or structural components. There are several material characteristics which should be examined before choosing a material for potential use as compacted structural fill. These characteristics include; C3 Lambert ana ~.sso~iates COMWlf~MO OLOTlCMMK~I lMpxglA! uRl Y~fLlli~l ~FSTIMO