Geotechnical Seminar Topics For Civil Engineering
Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. Geotechnical engineering is important in civil engineering, but is also used by military, mining, petroleum, or any other engineering concerned with construction on or in the ground. Geotechnical engineering usually uses principles of soil mechanics and rock mechanics to investigate subsurface conditions and materials; determine the relevant physical/mechanical and chemical properties of these materials; evaluate stability of natural slopes and man-made soil deposits; assess risks posed by site conditions; design earthworks and structure foundations; and monitor site conditions, earthwork and foundation construction
Engineering Geology and Groundwater
Weight-Volume Relationships (Phase Relationships) & Relative Density
Darcy’s Law for Flow through Porous Media
Soil Permeability & One-dimensional Flow
Special Cases of Permeability
2-D Flow and Flow Net Construction
Time-dependent Settlement and Spring Analogy
Compaction
Compaction is the process by which the strength and stiffness of soil may be increased and permeability may be decreased. Fill placement work often has specifications requiring a specific degree of compaction, or alternatively, specific properties of the compacted soil. In-situ soils can be compacted either by excavation and recompaction, or by methods such as deep dynamic compaction, vibrocompaction, or compaction grouting.
Geotechnical investigation
A geotechnical investigation will include surface exploration and subsurface exploration of a site. Sometimes, geophysical methods are used to obtain data about sites. Subsurface exploration usually involves in-situ testing (two common examples of in-situ tests are the standard penetration test and cone penetration test). In addition site investigation will often include subsurface sampling and laboratory testing of the soil samples retrieved. The digging of test pits and trenching (particularly for locating faults and slide planes) may also be used to learn about soil conditions at depth. Large diameter borings are rarely used due to safety concerns and expense, but are sometimes used to allow a geologist or engineer to be lowered into the borehole for direct visual and manual examination of the soil and rock stratigraphy
The Odometer and Consolidation Testing
Determination of Preconsolidation Pressure
Terzaghi’s One-dimensional Consolidation Theory
Grouting & Rock Bolting
Groung Improvment in Granular Soil
Determining the Shear Strength of Soils
Evaluation of Cv (Coefficient of Consolidation)
Mohr-Coulomb Failure Criteria
Determining the Shear Strength of Soils
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