EFFECT OF STRENGTH ANISOTROPY ON BEARING CAPACITY OF SHALLOW FOOTING IN A DENSE SAND

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概要

• 論文の詳細を見る

• rights: 社団法人地盤工学会rights: 本文データは学協会の許諾に基づきCiNiiから複製したものであるrelation: IsVersionOf: http://ci.nii.ac.jp/naid/110003983262/Stress components in an anisotropic soil is analyzed on the assumption that it behaves like an anisotropic-rigid-plastic material. Numerical solutions by the stress characteristics indicate that the bearing capacity factor N_γ by self-weight is easily over-estimated about 40%〜50% when the effect of the strength anisotropy of sandy soils is neglected. The bearing capacity tests by means of a small testing box also support the possibility of the over-estimation. The ultimate bearing capacity is maximum when a strip footing is penetrated perpendicular to the bedding plane, while when a strip footing is penetrated parallel to the bedding plane, the bearing capacity becomes minimum. The ratio of the maximum to the minimum is 1.6 for dense Toyoura sand. In spite of the remarkable effect of the strength anisotropy on the bearing capacity, the residual bearing capacity is constant without any effect of the strength anisotropy. On the basis of the qualitative accordance between the experimental results and the anisotropic-rigid-plastic solutions taking account of the effect of the mean pressure, it can be said that the so-called scale effect of N_γ is mainly caused by the decrease of mobilized angle φ with the increase of the mean pressure.

• 社団法人地盤工学会の論文
• 1979-09-15

著者

• 小田 匡寛

  Department Of Foundation Engineering Saitama University

• 小石川 功

  Department of Foundation Engineering, Saitama University

関連論文

• ELASTIC COMPLIANCE FOR ROCK-LIKE MATERIALS WITH RANDOM CRACKS
• ELASTIC COMPLIANCE FOR ROCK-LIKE MATERIALS WITH RANDOM CRACKS
• On the Influence of Progressive Failure on the Bearing Capacity of Shallow Foundations in Dense Sand(ディスカッション)
• ON THE RELATION τ/σ_N=κ・tanψ IN THE SIMPLE SHEAR TEST
• CO-ORDINATION NUMBER AND ITS RELATION TO SHEAR STRENGTH OF GRANULAR MATERIAL
• ON THE RELATION τ/σ_N=κ・tanψ IN THE SIMPLE SHEAR TEST
• ON STRESS-DILATANCY RELATION OF SAND IN SIMPLE SHEAR TEST
• A MICROSCOPIC STUDY ON SHEAR MECHANISM OF GRANULAR MATERIALS
• THE MECHANISM OF FABRIC CHANGES DURING COMPRESSIONAL DEFORMATION OF SAND
• INITIAL FABRICS AND THEIR RELATIONS TO MECHANICAL PROPERTIES OF GRANULAR MATERIAL
• A MECHANICAL AND STATISTICAL MODEL OF GRANULAR MATERIAL
• DEFORMATION MECHANISM OF SAND IN TRIAXIAL COMPRESSION TESTS
• THE MECHANISM OF FABRIC CHANGES DURING COMPRESSIONAL DEFORMATION OF SAND
• EFFECT OF STRENGTH ANISOTROPY ON BEARING CAPACITY OF SHALLOW FOOTING IN A DENSE SAND
• EXPERIMENTAL STUDY OF ANISOTROPIC SHEAR STRENGTH OF SAND BY PLANE STRAIN TEST
• ROTATION OF PRINCIPAL STRESSES IN GRANULAR MATERIAL DURING SIMPLE SHEAR
• MICROSCOPIC DEFORMATION MECHANISM OF GRANULAR MATERIAL IN SIMPLE SHEAR
• SHEAR STRENGTH OF UNDISTURBED SAMPLE OF DECOMPOSED GRANITE SOIL
• マサ土の乱さない試料のセン断強度(『土質工学会論文報告集』Vol.16,No.1(1976年3月発行)掲載論文の概要)
• SHEAR STRENGTH OF UNDISTURBED SAMPLE OF DECOMPOSED GRANITE SOIL
• THE EFFECT OF CRACK GEOMETRY ON HYDRODYNAMIC DISPERSION IN CRACKED MEDIA
• INITIAL FABRICS AND THEIR RELATIONS TO MECHANICAL PROPERTIES OF GRANULAR MATERIAL

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