AGEING AND VISCOUS EFFECTS ON THE DEFORMATION AND STRENGTH CHARACTERISTICS OF CEMENT-MIXED GRAVELLY SOIL IN TRIAXIAL COMPRESSION
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概要
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To investigate ageing and viscous effects on the strength and deformation characteristics of densely compacted cement-mixed gravelly soil as well as their interactions, a series of drained triaxial compression (TC) tests were performed on moist specimens compacted at water contents close to the optimum, employing several specially designed loading histories. Ageing effects were evaluated by using specimens cured at unconfined conditions as well as different anisotropic TC stress conditions for different periods, while loading rate effects due to viscous property by changing stepwise the strain rate and applying drained sustained loading during otherwise monotonic loading (ML). The strength and pre-peak stiffness generally increased by ageing (i.e., curing in this case), like young concrete. Noticeable loading rate effects due to viscous effects were observed, of which the trend was rather independent of curing period (i.e., ageing period). When ML was restarted at the original strain rate following sustained loading at an anisotropic stress state, the material became very stiff in a relatively large stress range that developed by coupled effects of ageing and viscosity. For the same total ageing period until failure, the peak strength became larger when aged at a higher shear stress for a longer period when compared to the value predicted based on the peak strength when aged unconfined or confined without a shear stress. The viscous property was quantified. The basic features of viscosity were found to be similar to those of unbound granular materials.
- 2005-12-15
著者
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龍岡 文夫
Department of Civil Engineering, University of Tokyo.
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Kongsukprasert Lalana
Department Of Civil Engineering Tokyo University Of Science
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龍岡 文夫
Dept. Of Civil Engineering University Of Tokyo
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Kongsukprasert Lalana
Tokyo Univ. Sci. Jpn
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龍岡 文夫
Department of Civil Engineering, Tokyo University of Science
関連論文
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- AN INSIGHT INTO THE FAILURE OF REINFORCED SAND IN PLANE STRAIN COMPRESSION BY FEM SIMULATION
- SMALL STRAIN STIFFNESS AND NON-LINEAR STRESS-STRAIN BEHAVIOUR OF CEMENT-MIXED GRAVELLY SOIL
- EFFECTS OF FACING RIGIDITY ON THE PERFORMANCE OF GEOSYNTHETIC-REINFORCED SOIL RETAINING WALLS
- CYCLIC UNDRAINED STRESS-STRAIN BEHAVIOR OF DENSE SANDS BY TORSIONAL SIMPLE SHEAR TEST
- STRENGTH AND DEFORMATION CHARACTERISTICS OF RECYCLED CONCRETE AGGREGATE AS A BACKFILL MATERIAL
- TIME-DEPENDENT SHEAR DEFORMATION CHARACTERISTICS OF GEOMATERIALS AND THEIR SIMULATION
- EFFECTS OF MOULDING WATER CONTENT ON THE STRESS-STRAIN BEHAVIOUR OF A COMPACTED SILTY SAND
- EFFECTS OF CURING PERIOD AND STRESS CONDITIONS ON THE STRENGTH AND DEFORMATION CHARACTERISTICS OF CEMENT-MIXED SOIL
- STRESS HISTORY-DEPENDENT DEFORMATION CHARACTERISTICS OF DENSE SAND IN PLANE STRAIN
- TIME-DEPENDENT SHEAR DEFORMATION CHARACTERISTICS OF SAND AND THEIR CONSTITUTIVE MODELLING
- SMALL STRAIN BEHAVIOR OF GEOMATERIALS : MODELLING OF STRAIN RATE EFFECTS
- A MODELLING PROCEDURE FOR SHEAR YIELDING CHARACTERISTICS AFFECTED BY VISCOUS PROPERTIES OF SAND IN TRIAXIAL COMPRESSION
- EFFECTS OF VISCOUS PROPERTIES ON THE SHEAR YIELDlNG CHARACTERISTICS OF SAND
- EXPERIMENTAL EVALUATION OF THE VISCOUS PROPERTIES OF SAND IN SHEAR
- STRENGTH AND DEFORMATION PROPERTIES OF COMPACTED CEMENT-MIXED GRAVEL EVALUATED BY TRIAXIAL COMPRESSION TESTS
- ANISOTROPY IN ELASTIC DEFORMATION OF GRANULAR MATERIALS
- STRESS-CONFINEMENT EFFECT OF NONWOVEN GEOTEXTILE ON DESIGN OF REINFORCED SOIL RETAINING WALL
- AGEING AND VISCOUS EFFECTS ON THE DEFORMATION AND STRENGTH CHARACTERISTICS OF CEMENT-MIXED GRAVELLY SOIL IN TRIAXIAL COMPRESSION
- THE SMALL STRAIN STIFFNESS OF A CARBONATE STIFF CLAY
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