Introduction to Geotechnical Engineering

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Introduction to Geotechnical Engineering
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  Dr. Abdelaziz El- Shinawy  Dr. Abdelaziz El- Shinawy Introduction   The scale to which a rock mechanics program istaken depends on the amount of money available.   Ideally the rock mechanics program should startwith the exploration of the future mine site.   The drilling records of each hole should beexamined for evidence of faults, planes of weakness,cavities, soft formations, clay beds.  Dr. Abdelaziz El- Shinawy Where afew mine is to be designed two approachesare used con-currently. One is standard practice based on previous experience, the other is to usedesign principles based on the known properitiesof rock and soil. Designation  Definition Rock Massive natural aggregation of minerals, grains of which can not be easily separated from each other. Soil  Natural aggregation of minerals, grains of which can be separated from each other by simplemechanical means e.g pluviation, remolding andmixing with water and stirring. Dr. Abdelaziz El- Shinawy  Rock Mechanics   Geological Classification (Lithology, Rock Families,GeologicAge and Rock Units.   Rock Structure (Stress regime, foliation, Joints, fractures,folds and faults).   Engineering Classification of Intact Rock.   Engineering Classification of Rock Mass (RMR and Q-system).   Core sample definition and analysis (TCR, TSR, RQD andFI).   Unconfined Compressive strength (by compressivemachine, Rock shear test and point load). Dr. Abdelaziz El- Shinawy
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