Numerical Modeling of Fluid Flow in Single Rock Fracture during Shear with Special Algorism for Contact Areas
-
- JIANG Yujing
- Department of Civil Engineering, Nagasaki University
-
- KOYAMA Tomofumi
- Department of Land and Water Resources Engineering, Royal Institute of Technology
-
- LI Bo
- Graduate School of Science and Technology, Nagasaki University
-
- TASAKU Yusuke
- Graduate School of Science and Technology, Nagasaki University
-
- SAHO Ryousuke
- Graduate School of Science and Technology, Nagasaki University
-
- TANABASHI Yoshihiko
- Department of Civil Engineering, Nagasaki University
Bibliographic Information
- Other Title
-
- 岩盤不連続面内の接触変化を考慮した流動機構数値解析手法の提案と検証
- ガンバン フレンゾクメンナイ ノ セッショク ヘンカ オ コウリョシタ リュウドウ キコウ スウチ カイセキ シュホウ ノ テイアン ト ケンショウ
Search this article
Abstract
The fluid flow in a single rock fracture during shear processes has been an important issue in rock mechanics and is investigated in this study using the Finite Element Method (FEM), considering evolutions of aperture and transmissivity with shear displacement histories under different normal loading conditions. The distributions of fracture aperture and its evolution during shear were calculated from the initial aperture, based on the laser-scanned sample surface roughness features, and shear dilations measured in the laboratory coupled shear-flow tests. Three rock fractures with different roughness were used as parent samples from which nine replicas were made and tested under three normal loading conditions. For flow simulations, a special algorithm for treating the contact areas as zero-aperture elements was used to produce more accurate flow field simulations, which provide good agreement with the flow rate data obtained from the laboratory tests, showing that complex histories of fracture aperture and tortuous flow fields with changing normal stress and increasing shear displacements.
Journal
-
- Journal of MMIJ
-
Journal of MMIJ 124 (2), 129-136, 2008
The Mining and Materials Processing Institute of Japan
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001205276241792
-
- NII Article ID
- 10021121236
-
- NII Book ID
- AA12188381
-
- ISSN
- 18840450
- 18816118
-
- NDL BIB ID
- 9398410
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed