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Stresses around underground excavations PDF

101 Pages·2004·1.93 MB·English
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Stresses around underground excavations W Tel: 6713 [email protected] Introduction n Components of stress n Tow dimensional state of stress n In situ state of stress n Stress distributions around n single excavations Stress around a circular n excavation Calculation of stresses around n other excavation shapes Stresses around multiple n excavations Three-dimensional stress n problems Stress shadows n Influence of gravity n Introduction Components of stress Surface forces n Surface tractions n Stress at a point n Transformation equations n Principal planes n Planes stress n Plane strain conditions n Surface forces Shear stress and Normal stress Three dimension t Symmetrical condition Stress transformation

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Tow dimensional state of stress. ▫ In situ state of stress. ▫ Stress distributions around single excavations. ▫ Stress around a circular excavation
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