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タイトル: | せん断時の土の応カ―ひずみ関係について |
その他のタイトル: | THE STRESS-STRAIN RELATION OF SOILS UNDER SHEARING DERIVED FROM A MICROSCOPIC CONSIDERATION |
著者: | 松岡, 元 ![]() |
著者名の別形: | MATSUOKA, Hajime |
発行日: | 1-Apr-1972 |
出版者: | 京都大学防災研究所 |
誌名: | 京都大学防災研究所年報. B |
巻: | 15 |
号: | B |
開始ページ: | 499 |
終了ページ: | 511 |
抄録: | The shearing mechanism of soils has been studied from the microscopic point of view in orderto analyze their macroscopic stress-strain relation. Special shearing tests were carried out usingaluminium rods and similar rods made of a photoelastic material to simulate granular mass in two-dimensional state. The concept of the frequency distribution of the contact angle between parti-cles 0 and its variation during shear was introduced to represent the shearing resistance anddilatancy character. The basic relation of stress ratio (τ/σN) ~ the mean value of θ (θ) and that ofnormal strain caused by dilatancy (εN) ~ θare derived as follows;τ/σN=λ・θ+μ εN=(cosθ-cosθ0)/cosθ0whereλ= 1.4-. 1.5 (coust.), μ; the coefficient of friction between particles, θ0; θ immediately af-ter the beginning of shearing. From these microscopic consideration, the stress-strain relationof soils under shearing which can be applied to sands and clays has been derived as follows;where μ'=-λ・θ0+μ, γ0;γ at the maximum compression point of εN. |
URI: | http://hdl.handle.net/2433/69814 |
関連リンク: | http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html |
出現コレクション: | No.15 B |
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