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2001 Fiscal Year Final Research Report Summary

Evaluation of Strength of Rock Mass from Property of Intact Rock and Digital Image of Crack Distribution on Outcrops

Research Project

Project/Area Number 12650455
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 土木材料・力学一般
Research InstitutionTohoku University

Principal Investigator

KYOYA Takashi  Tohoku University, Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (00186347)

Project Period (FY) 2000 – 2001
KeywordsDiscontinuous Rock mass / Multi-scale analysis / Digital image of Crack distribution
Research Abstract

Mechanical properties of rock mass are strongly governed by the microscopic structure that consists of distributed cracks and various rock materials. In order to evaluate the deformability and the strength of such a rock mass, the numerical scheme of multi-scale which is based on both the homogenization method and the limit load analysis is proposed. The data needed are only the mechanical properties of intact rocks and the digital image of crack distribution, which are easily obtained from laboratory tests and survey in site. The deformability and strength of representative element of rock mass are reasonably evaluated from the homogenization analyzes. And then the limit load of a rock mass structure is also successfully evaluated by the limit load analysis.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 京谷孝史, 寺田賢二郎: "マルチスケール応力変形解析法とその分布亀裂を含む材料の強度特性評価への適用"土木学会論文集. No.680/III-55. 49-64 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 京谷孝史, 欧陽立珠: "均質化理論に基づく安定性評価解析法の岩盤斜面への適用"土木学会論文集. (印刷中).

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T. Kyoya, K. Terada: "A multi-scale structural analysis and its application to a strength evaluation for fissured media."Proceedings of JSCE. No.680/III-55. 49-64 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Kyoya, L. Ouyang: "An application of stability analysis method based on the homogenization theory to a rock slope"Proceedings of JSCE. in print.

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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