ゴム球集合体の三軸圧縮時の変形特性に関する検討  [in Japanese] DEFORMATION CHARACTERISTICS ABOUT AGGREGATION OF RUBBER SPHERE IN TRIAXIAL COMPRESSION TEST  [in Japanese]

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Abstract

タイヤチップを岸壁などの裏込めに用いることで構造物に作用する土圧を低減できることが知られている.しかし,タイヤチップ集合体は圧縮性が高く,変形しやすいことが難点として上げられており,現在は,タイヤチップと砂を混合させて用いることが検討されている.本研究では,砂,タイヤチップ集合体,ゴム球集合体の排水三軸圧縮試験を行ない,三軸圧縮時のタイヤチップ集合体の圧縮性,せん断特性とタイヤチップ粒子の変形特性について検討した.特に,ゴム球集合体の三軸圧縮試験については,圧縮せん断中の供試体内部の変形状態についてX線CT装置を用いて観察し,せん断特性と内部構造の変化及び粒子変形の関係について考察した.

An earth pressure acting on quay wall structures can be reduced if a tire chip is used for the backfill. But, it is a problem that tire chips have high compressibility and it is easy to deform. To prevent this problem, tire chips are considered to be used with mixing with sand. In this paper, a series of triaxial compression tests of rubber sphere specimen was conducted, and investigations of its shear strength and compressibility of rubber sphere specimen and deformation of rubber sphere particles were conducted with X ray CT scanning. Relationship between shear strength characteristics and change of internal structure and deformation of the particles were discussed.

Journal

  • Geosynthetics Engineering Journal

    Geosynthetics Engineering Journal (23), 89-94, 2008

    Japan Chapter of International Geosynthetics Society

Codes

  • NII Article ID (NAID)
    130000142763
  • Text Lang
    JPN
  • ISSN
    1344-6193
  • NDL Article ID
    10389122
  • NDL Source Classification
    ZN1(科学技術--建設工学・建設業) // ZP33(科学技術--繊維工学・工業)
  • NDL Call No.
    Z16-1575
  • Data Source
    NDL  J-STAGE 
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