000			04289nam a22002657a 4500
003			OSt
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008			210131b ||||| |||| 00| 0 eng d
020			_a0534951791
020			_a9780534951795
040			_aBUL _bEng _cBUL _dBUL
082			_222 _a624.15136 _bDAS
100			_aDas, Braja M.
245			_aPrinciples of geotechnical engineering / _cBraja M. Das
250			_a4th edition
260			_aBoston ; _aMexico; _aNew York : _bInternational Thomson Publishing _cc1998
300			_axvi, 712 p. : _bill. (some col) ; _c24 cm
500			_a Contents 1. Soil and Rocks Preview Rock cycle and the origin of soil Soil-particle size Clay minerals Specific gravity Mechanical analysis of soil etc. 2. Weight-volume relationship, plasticity and structure of soil Weight-volume relationships Relationships among unit weight Void ratio, moisture content, and specific gravity Various unit- weight relationship Relative density Consistence of soil etc. 3. Classification of soil Texture classification Classification by engineering behaviour AASHTO Classification Unified soil classification system Comparison between AASHTO and unified systems etc. 4. Soil compaction Compaction- General principles Standard proctor test Factors affecting compaction Modified proctor test Structure of compacted clay soil etc. 5. Flow of water in soil: permeability and seepage Bernoulli's equation Darcy's law Hydraulic conductivity Laboratory determination of hydraulic conductivity Effect of hydraulic conductivity Effect of water temperature on R ETC. 6.Effective stress concepts Stresses in saturated soil without seepage Stresses in saturated soil with seepage Seepage force Use of fertilizer to increase the factor of safety against heave Selection of filter materials etc. 7. Stress in a soil mass Normal and shear stress on a plane The pole method of finding stresses along a plane Stress caused by a point load Westergaard's solution for vertical stress caused by a point load Vertical stress caused by a line load etc. 8. Compressibility of soil Fundamentals of consolidation One dimension laboratory consolidation Void ratio-pressure plots Normally consolidated and over consolidated clay Effects of disturbance on void ratio-pressure relationships Influence of other factors void ratio-pressure relationships etc. 9. Shear strength of soil Mohr-coulomb failure criteria Direct shear test Drained direct shear test on saturated sand and clay General comment on direct shear test Triaxial shear test -General etc. 10. Lateral earth pressure Earth pressure at rest Rankine's theory of active pressure Theory of Rankine's passive pressure Effect of wall yielding Diagrams for Lateral Earth pressure distribution against retaining elasticity etc. 11. Dynamic lateral earth pressure Active force on retaining walls with earthquake force Location of the line of action the resultant force P ae Design of retaining wall based on tolerable Latera displacement Dynamic earth pressure distribution behind a wall rotating about the top P ae for c-o soil backfill Passive force on retaining walls with earthquake force etc. 12. Soil bearing capacity for shallow foundation Ultimate soil-bearing capacity for shallow foundation Terzaghi's ultimate bearing capacity equation effect of groundwater table Factor of safety General bearing capacity equation etc. 13. Slope Stability Factor of safety Stability of infinity slopes with seepage Finite slope-General Analysis of finite slope with plane failure surfaces Slopes with water in the tensile crack etc. 14. Landfiil liners and geosynthetics Landfill liners-overview Geosynthetics Geotextiles Geomebranes Geonets etc. 15. Subsoil exploration Planning for soil exploration Boring methods Common sampling methods Sample disturbances Correlation for standard penetration test
504			_aBibliographical references and Index.
650			_aSoil Mechanics
650			_aEngineering geology
650			_aSoil permeability
942			_2ddc _cBOOK-CA _h624.15136 _i1 _kDAS _m624.15136 DAS _e4th edition
999			_c493 _d493