Shallow Foundations: Discussions and Problem Solving is written for civil engineers and all civil engineering students taking courses in soil mechanics and geotechnical engineering. It covers the analysis, design and application of shallow foundations, with a primary focus on the interface between the structural elements and underlying soil. Topics such as site investigation, foundation contact pressure and settlement, vertical stresses in soils due to foundation loads, settlements, and bearing capacity are all fully covered, and a chapter is devoted to the structural design of different types of shallow foundations. It provides essential data for the design of shallow foundations under normal circumstances, considering both US and Eurocode standards, with each chapter being a concise discussion of critical and practical aspects. Applications are highlighted through solving a relatively large number of realistic problems, with a total of 180 problems, all with full solutions, consolidating understanding of the fundamental principles and illustrating the design and application of shallow foundations. INDICE: PREFACE .SITE INVESTIGATION IN RELATION TO ANALYSIS & DESIGN OF SHALLOW FOUNDATIONS 1 .1.1 GENERAL 1 .1.2 SITE INVESTIGATION 2 .1.2.1 Reconnaissance 2 .1.2.2 Subsurface Exploration 4 .1.2.3 Laboratory Tests 6 .1.2.4 Compiling Information 7 .1.2.5 Final Geotechnical Report 9 .Problem Solving 10 .(Discussions and Solutions of 27 Problems Are Presented) .References 90 .SHALLOW FOUNDATIONS INTRODUCTORY CHAPTER 94 .2.1 GENERAL 94 .2.2 TYPES OF FOUNDATIONS 95 .2.3 DEPTH OF FOUNDATIONS 103 .2.4 FOUNDATION PERFORMANCE REQUIREMENTS 106 .2.4.1 General 106 .2.4.2 Strength Requirements 107 .2.4.3 Serviceability Requirements 108 .2.4.4 Constructibility Requirements 109 .2.4.5 Economy Requirements 109 .2.5 SULFATE AND ORGANIC ACID ATTACK ON CONCRETE 110 .2.5.1 Sulfate Attack 110 .2.5.2 Organic–Acid Attack 112 .2.6 PRESSURES UNDER FOUNDATIONS 113 .2.6.1 Contact Pressure and Contact Settlement 113 .2.6.2 Contact Pressure under Eccentrically Loaded Spread Footings 117 .2.7 VERTICAL STRESSES IN SOILS DUE TO FOUNDATION LOADS 120 .2.7.1 General 120 .2.7.2 Vertical Stress Due to a Concentrated Load 121 .2.7.3 Vertical Stress Due to a Line Load 122 .2.7.4 Vertical Stress Due to a Uniformly Loaded Strip Area 123 .2.7.5 Vertical Stress Due to a Uniformly Loaded Circular Area 124 .2.7.6 Vertical Stress Due to a Uniformly Loaded Rectangular Footing 126 .2.7.7 Newmark s Chart Method of Determining Vertical Stresses 131 .2.7.8 Pressure Bulbs Method of Determining Vertical Stresses 133 .2.7.9 Average Vertical Stress Due to a Loaded Rectangular Area 135 .2.7.10 Westergaard?s Equations 137 .Problem Solving 139 .(Solutions of 21 Problems Are Presented) .References 171 .SHALLOW FOUNDATIONS SETTLEMENTS 172 .3.1 GENERAL 172 .3.2 IMMEDIATE SETTLEMENT 178 .3.3 SETTLEMENT OF FOUNDATIONS ON COARSE GRAINED SOILS 185 .3.3.1 General 185 .3.3.2 Estimation of Settlements from SPT 188 .3.3.3 Estimation of Settlements from CPT 191 .3.4 SETTLEMENT OF FOUNDATIONS ON FINE GRAINED SOILS 196 .3.4.1 General 196 .3.4.2 Immediate Settlement of Fine–grained Soils 198 .3.4.3 Consolidation Settlement 201 .3.4.4 Estimation of the Rate of Consolidation Settlement 209 .3.4.5 Method of Accelerating the Rate of Consolidation Settlement 210 .3.4.6 Estimation of Settlements over the Construction Period 216 .3.4.7 Secondary Compression 218 .3.5 SETTLEMENT OF FOUNDATIONS ON ROCKS 220 .Problem Solving 225 .(Solutions of 56 Problems Are Presented) .References 306 .SHALLOW FOUNDATIONS BEARING CAPACITY 310 .4.1 GENERAL 310 .4.2 BASIC DEFINITIONS 312 .4.3 GROSS AND NET FOUNDATION PRESSURES 314 .4.4 BEARING CAPACITY FAILURE MECHANISM FOR LONG (STRIP) FOOTINGS 318 .4.5 BEARING CAPACITY EQUATIONS 320 .4.6 SOME CONSIDERATIONS CONCERNING THE USE OF BEARING CAPACITY EQUATIONS 325 .4.7 BEARING CAPACITY OF FOOTINGS WITH INCLINED LOADS 328 .4.8 BEARING CAPACITY OF FOOTINGS WITH ECCENTRIC LOADS 329 .4.9 EFFECT OF WATER TABLE ON BEARING CAPACITY 336 .4.10 INFLUENCE OF SOIL COMPRESSIBILITY ON BEARING CAPACITY 338 .4.11 EFFECT OF ADJACENT FOOTINGS ON BEARING CAPACITY 340 .4.12 BEARING CAPACITY OF FOUNDATIONS ON SLOPES 340 .4.12.1 General 340 .4.12.2 Solutions 341 .4.13 BEARING CAPACITY OF FOOTINGS ON LAYERED SOILS 347 .4.13.1 General 347 .4.13.2 Ultimate Bearing Capacity: .Stronger Soil Underlain by Weaker Soil 348 .4.13.3 Ultimate Bearing Capacity: .Weaker Soil Underlain by Stronger Soil 352 .4.14 SAFETY FACTOR (SF) 354 .4.15 BEARING CAPACITY FROM RESULTS OF IN–SITU TESTS 355 .4.16 UPLIFT CAPACITY OF SHALLOW FOUNDATIONS 357 .4.17 SOME COMMENTS AND CONSIDERATIONS CONCERNING .GEOTECHNICAL DESIGN OF SHALLOW FOUNDATIONS 362 .4.18 BEARING CAPACITY OF ROCK 365 .Problem Solving 370 .(Solutions of 40 Problems Are Presented) .References 437 .SHALLOW FOUNDATIONS STRUCTURAL DESIGN 440 .5.1 GENERAL 440 .5.2 DESIGN LOADS 441 .5.3 SELECTION OF MATERIALS 442 .5.4 STRUCTURAL ACTION OF VERTICALLY AND CENTRALLY LOADED ISOLATED AND CONTINUOUS (STRIP) FOOTINGS 443 .5.4.1 General 443 .5.4.2 Flexure 443 .5.4.3 Shear 449 .5.4.4 Development of Reinforcement 452 .5.4.5 Transfer of Force at Base of Column, Wall, or Pedestal 453 .5.5 ECCENTRICALLY LOADED SPREAD FOOTINGS 461 .5.6 PEDESTALS 464 .5.7 PILE CAPS 465 .5.8 PLAIN CONCRETE SPREAD FOOTINGS 468 .5.9 COMBINED FOOTINGS 470 .5.9.1 General 470 .5.9.2 Rectangular Combined Footings 471 .5.9.3 Trapezoidal Combined Footings 473 .5.9.4 Strap (or Cantilever) Footings 474 .5.10 MODULUS OF SUBGRADE REACTION 476 .5.11 BEAMS ON ELASTIC FOUNDATIONS 480 .5.12 MAT FOUNDATIONS 485 .5.12.1 General 485 .5.12.2 Design Procedure for the Conventional (Rigid) Method 487 .5.12.3 Design Procedure for the Approximate Flexible Method 491 .5.12.4 Finite Difference Method (FDM) for Design of Mat Foundations 494 .5.12.5 Modulus of Subgrade Reaction and Node Coupling of Soil Effects for Mats 496 .5.12.6 Finite Element Method (FEM) for Design of Mat Foundations 501 .5.12.7 Finite Grid Method (FGM) for Design of Mat Foundations 504 .Problem Solving 507 .(Solutions of 28 Problems Are Presented) .References 777 .EUROCODE STANDARDS IN RELATION TO DESIGN OF SPREAD FOUNDATIONS 779 .6.1 GENERAL 779 .6.2 BASIS OF DESIGN IRRESPECTIVE OF THE MATERIAL OF CONSTRUCTION 783 .6.2.1 Introduction 783 .6.2.2 Terms and definitions 784 .6.2.3 Requirements 790 .6.2.4 Quality Management 792 .6.2.5 Principles of Limit States Design 792 .6.3 DESIGN OF SPREAD FOUNDATIONS 804 .6.3.1 Introduction 804 .6.3.2 Geotechnical Categories 805 .6.3.3 Limit States 806 .6.3.4 Geotechnical Design 808 .6.3.5 Structural Design 825 .Problem Solving 841 .(Solutions of 8 Problems Are Presented) .References 891 .Index 893
- ISBN: 978-1-119-05611-9
- Editorial: Wiley–Blackwell
- Encuadernacion: Cartoné
- Páginas: 752
- Fecha Publicación: 03/06/2016
- Nº Volúmenes: 1
- Idioma: Inglés