Objectives of Soil Exploration The elements of soil exploration depend mostly on the importance and magnitude of the project, but generally should provide the following information for the geotechnical engineers: For New Structure 1. Identification and classification of soil 2. Evaluating relevant engineering properties needed for substructure design, such as shear strength, compressibility, stiffness, permeability, expansion or collapse potential, and frost susceptibility. 3. Selecting the type and depth of foundation suitable for a given structure. 4. Evaluating the load-bearing capacity of the foundation. 5. Estimating the probable settlement of a structure. 6. Determining potential foundation problems (i.e. expansive soil, collapsible soil, sanitary landfill, and so on). 7. Determining the location of the water table. 8. To select the suitable construction technique. 9. Predicting lateral earth pressure for structures such as retaining walls, sheet pile bulkheads, and braced cuts. 10. Establishing construction methods for changing subsoil conditions. 11. Determining Dewatering requirements during construction. 12. Determining the suitability of soil and the degree of compaction of fill. 13. Safe and economic design of foundation and substructures. 14. Overcoming construction problems that may be encountered at site. Existing Structure 1. The investigation of the safety of the structure. 2. The prediction of settlement. 3. The determination of remedial measures if the structure is unsafe or will suffer deferential settlement. Highway and Airfields 1. The location of the road both vertically and horizontally. 2. The location and selection of borrow material for fills and sub grade treatment. 3. The design and location of ditches, culverts and drains. 4. The design of roadway sections. 5. The need and type of sub-grade treatment. 6. The location of local source of construction materials for bases and wearing surface.
Posted on: Wed, 04 Sep 2013 13:08:58 +0000
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