THE SIGNIFICANCE OF LOCAL LATERAL-STRAIN MEASUREMENT OF SOIL SPECIMENS FOR A WIDE RANGE OF STRAIN

スポンサーリンク

概要

• 論文の詳細を見る

• Laboratory instrumentation has been developed for sensitive measurement of local lateral-strain of soil specimens. It incorporates a non-contact type of transducer (proximity transducer) whereby lateral deformation of rectangular and circular specimens can be measured in a direct manner at some positions over the central portions, which are relatively free from end restraints. The working principle is described, together with the accuracy and sources of error involved in the measurement. It has been demonstrated in some pilot tests (i.e., drained monotonic loading tests in plane strain compression and a drained cyclic triaxial test) performed on silver Leighton Buzzard and Toyoura sands, that full instrumentation for the local strain measurements, coupled with a previously developed device for the local axial-strain measurement, permitted a continuous examination into the shear-strain-level dependent Young's modulus and Poisson's ratio over a wide range of the pre-failure strain in the orders between 0.0001% and 10%. The scope of the pre-failure strain included the examinations of both the elastic response at extremely small strains less than about 0.002% and the peak strength of a single specimen. It was found that the Poisson's ratio with the shear strain being less than about 0.05% remained more or less constant at around 0.22 and 0.15 for sliver Leighton Buzzard and Toyoura sands, which comprize round and angular to sub-angular grains, respectively. Furthermore, in a broad sense, Rowe's stress-dilatancy relation was found to be valid over the whole range of the pre-failure strain examined, and it was scarcely influenced by the history of over-consolidation at small strains.

• 社団法人地盤工学会の論文
• 1994-06-15

著者

• 木幡 行宏

  Iis University Of Tokyo

• 渋谷 啓

  Department of Civil Engineering, Hokkaido University. Formerly Institute of Industrial Science (IIS)

• PARK CHOONSIK

  Dong-A University. Formerly Graduate Student, IIS, University of Tokyo

• 龍岡 文夫

  IIS, University of Tokyo

• 安部 文洋

  Tokyo Metropolitan Government. Formerly Graduate Student, IIS, University of Tokyo

• TEACHAVORASINSKUN SUPOT

  Taisei Corporation. Formerly Graduate Student, IIS, University of Tokyo

• 木幡 行宏

  IIS, University of Tokyo

• PARK CHOON-SIK

  Dong-A University

• 佐藤 剛司

  ditto

• Park C‐s

  Dong-a University. Formerly Graduate Student Iis University Of Tokyo

• Teachavorasinskun Supot

  Taisei Corporation. Formerly Graduate Student Iis University Of Tokyo

• 安部 文洋

  Tokyo Metropolitan Government. Formerly Graduate Student Iis University Of Tokyo

• 渋谷 啓

  Department of Civil Engineering, Hokkaido University. Formerly Institute of Industrial Science (IIS), University of Tokyo

関連論文

• THE SIGNIFICANCE OF LOCAL LATERAL-STRAIN MEASUREMENT OF SOIL SPECIMENS FOR A WIDE RANGE OF STRAIN
• ベデイングエラー
• 広い範囲のひずみにおける土供試体の測方ひずみの直接測定の有用性について(『土質工学会論文報告集』Vol.34,No.2(1994年6月発行)掲載論文の概要)
• ASTM動的土質試験法に関するシンポジウムIIに参加して
• THE SIGNIFICANCE OF LOCAL LATERAL-STRAIN MEASUREMENT OF SOIL SPECIMENS FOR A WIDE RANGE OF STRAIN
• 2296.化学的固化に対する新しい考え方 : 東京湾横断道路におけるセメント改良土工法(地盤改良のニューフロンティア)
• 地盤材料の繰り返し・単調載荷における変形特性 (耐震工学の最前線)
• 第7回三軸圧縮試験(土と岩の変形係数の精密測定)実技講習会報告
• 2214.堆積軟岩の非線形変形特性の調査試験法
• 2.特殊土とその工学的挙動
• 第6回自動化された三軸圧縮試験実技講習会報告
• STRENGTH AND DEFORMATION CHARACTERISTICS OF SAND IN TORSIONAL SIMPLE SHEAR
• SIMPLE SHEAR TESTING ON SAND IN A TORSIONAL SHEAR APPARATUS
• 土質試験による地盤材料の減衰特性 (耐震構造学における新しい発想)
• AN AUTOMATED TRIAXIAL TESTING SYSTEM USING A SIMPLE TRIAXIAL CELL FOR SOILS
• EXPERIMENTAL STRESS-DILATANCY RELATIONS OF SAND SUBJECTED TO CYCLIC LOADING
• ELASTIC DEFORMATION PROPERTIES OF GEOMATERIALS
• Elastic Deformation Properties of Geomaterials (closure)
• 砂の応力 : ひずみ関係のモデル化(『土質工学会論文報告集』Vol.33,No.2 (1993年6月発行)掲載論文の概要)
• MODELLING STRESS-STRAIN RELATIONS OF SAND
• 地盤材料の弾性変形特性(『土質工学会論文報告集』Vol. 32,No.3 (1992年9月発行)掲載論文の概要)
• 研究解説 : 原位置調査･室内試験･逆解析による土と岩の変形係数(その1) : 原位置試験･室内試験･逆解析のデータの比較
• 土と岩の非線型応力〜ひずみ関係のモデル化-2-新しい式〔英文〕
• 土と岩の非線型応力〜ひずみ関係のモデル化-1-双曲線関数の検討〔英文〕
• セメント改良砂質土の変形・強度特性 (土を固める/その新技術)
• 原位置調査・室内試験・逆解析による土と岩の変形係数-2-弾性的性質と測定誤差

もっと見る 閉じる

スポンサーリンク