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| INFLUENCE OF CONFINING PRESSURE ON PARTICLE BREAKAGE AND SHEAR EXPANSION OF CALCAREOUS SAND |
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Abstract Particle breakage at low stress level leads to a special stress-strain relation for calcareous sand. By assuming that the strengths of particles follow a certain probability，damage parameter is obtained，then a damage bounding surface model is constructed. The relationship among particle breakage，shear expansion and confining pressure are discussed，and theory and experiment results are of good agreement.
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Received: 05 April 2002
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