- covers the major in geotechnical engineering
- packed with self-test problems and projects with an on-line detailed solutions manual
- presents the state-of-the-art field practice
- covers both Eurocode 7 and ASTM standards (for the US)
Engineering geology is a key element in geotechnical engineering, it involves description of the structure and attributes of rocks that are connected with engineering works, mapping and characterization of all geologic features and materials that are proximate to a project, and identification and evaluation of potential natural hazards. This chapter presents an introduction to engineering geology and covers the structure of the Earth and geologic time, formation and classification of rocks and soils, engineering properties and behaviors of rocks, and maps used in engineering geology.
Geotechnical subsurface exploration investigates and provides the subsurface profile information that is used to perform sound geotechnical project designs. This chapter presents the framework of subsurface explorations, field drilling and sampling methods, geotechnical boring log, common field testing methods, subsurface investigations using geophysical techniques, and typical format and requirements of a geotechnical investigation report. Ample graphical illustrations are used to show the equipment, methods, and techniques in subsurface investigation.
Chapter 3. Shallow Foundation Design
This chapter covers the methodologies and steps of shallow foundation design in two major aspects: bearing capacity and settlement. The bearing capacity aspect of a shallow foundation design includes failure modes, Terzaghi&rsquo, s bearing capacity theory, the general bearing capacity theory, effect of groundwater on ultimate bearing capacity, bearing capacity of eccentrically loaded shallow foundations, and foundation design approaches based on allowable bearing capacity with global factor of safety and with partial factor of safety. The settlement aspect of a shallow foundation design includes vertical stresses due to external loads, elastic settlement and consolidation settlement. Structural design of shallow foundations is not included.
Chapter 4. Introduction to Deep Foundation Design
This chapter covers the basic concepts in a deep foundation design and the design approach for driven pile foundations, including methods for static bearing capacity (point bearing capacity and friction resistance) of a single driven pile in various soils, and vertical bearing capacity and settlements of pile groups. The methods of determining static bearing capacity of a single pile includes Nordlund method, a-method, b-method, and bearing capacity (resistance) based on the results of static load tests using limit state design. Drilled shafts and structural design of deep foundations are not included.
Chapter 5. Slope Stability Analyses and Stabilization Measures
This chapter covers the typical slope stability analyses and stabilization measures. The slope stability analysis methods include infinite slope methods considering soil&rsquo, s saturation and seepage condition, Culmann&rsquo, s methods for planar failure surfaces, analytical method for slopes with curved failure surfaces, Taylor&rsquo, s method considering soils strength properties, ordinary method of slices and Bishop&rsquo, s method of slices, analysis methods considering pore water pressure (Bishop-Morgenstern method, Spencer charts, and Michalowski charts), Morgenstern charts for rapid drawdown, and analysis method of stratified slopes. The concepts of slope stabilization measures are presented with the aid of ample graphical illustrations.
This chapter presents the common types of filtration, drainage, dewatering, and erosion controls in the practice. Quantitative design approaches of granular filters and geotextile filters are covered. The dewatering and drainage methods include open pumping, well points, deep wells, vacuum dewatering, and electroosmosis. Common methods of surface and subsurface erosion controls in the field practice are presented. Seepage-control methods in levees and earthen dams are also included. Sufficient photos and graphs are used to illustrate the design approaches and field applications of each topic.
Chapter 7. Soil Retaining Structures
This chapter presents the determination of lateral earth pressures and the design of three soil retaining structures: conventional retaining walls, sheet pile walls, and soil nail walls. The determination of lateral earth pressures includes at-rest earth pressure calculation, Rankine&rsquo, s theory and Coulomb&rsquo, s theory for active and passive soil pressures, considering various soil properties, surcharge on backfill and inclination of backfill. The conventional retaining wall design considers the failures of overturning, sliding, and bearing capacity and uses both the working stress design with total factor of safety and limit state design with partial factors of safety. The design of sheet pile walls includes the cantilever walls penetrating cohesionless soils and cohesive soils, using working stress design with total factor of safety and limit state design with partial factors of safety. The soil nail wall design includes the design against global stability failure, sliding failure, and bearing capacity failure.
This chapter introduces the geosynthetics types and characteristics and the designs of three common field applications using geosynthetics: mechanically stabilized earth (MSE) walls, reinforced soil slopes, and filtration and drainage using geosynthetics. The designs of MSE walls and reinforced soil slopes using geosynthetics include both internal stability (geosynthetics design) and external stability. The filtration and drainage design using geotextiles includes the hydraulic properties of geotextiles, soil retention criteria, drainage criteria, long-term flow compatibility, and survivability and durability criteria. Detailed design approach and sample problem solution are included in each topic.
This chapter introduces the basic seismology and earthquake characteristics and presents three basic seismic evaluations: seismic slope stability, dynamic lateral earth pressures, and liquefaction. Dynamic active and passive earth pressures are determined using the Mononobe-Okabe method. Three analysis methods are presented in the seismic slope stability analyses: pseudostatic analysis, Newmark sliding block analysis, and Makdisi-Seed analysis. The liquefaction analysis includes the evaluation of cyclic stress ratio (CSR) and cyclic resistance ratio (CRR) using SPT and CPT methods.Soil (Civil Engineering)