FLOW ON A SINGLE ROCK FRACTURE IN THE SHEAR PROCESS AND THE VALIDITY OF THE CUBIC LAW EXAMINED THROUGH EXPERIMENTAL RESULTS AND NUMERICAL SIMULATIONS

• KISHIDA KIYOSHI

  Department of Urban Management, Kyoto University

• MGAYA PROSPER

  Department of Civil Engineering, Dar Es Salaam Institute of Technology

• OGURA KAZUHITO

  Ministry of Internal Affairs and Communications

• HOSODA TAKASHI

  Department of Urban Management, Kyoto University

抄録

In order to discuss the flow through a rough surface rock fracture, direct shear and flow coupling tests on various rock fractures are carried out. Through the experimental results, the flow on the fracture and the validity of the cubic law are discussed and estimated. As a result, it is understood that the cubic law cannot sufficiently explain the experimental results, although it can partially take into account the experimental results in the Re range of 0.02 to 0.2. Moreover, a simulation by a 2D model, including the inertia term, has been carried out. The 2D model has been found to show a good performance of the fracture flow in comparison with the representative fracture flow model, namely, LCL (local cubic law). The flow on the fracture shows the channeling flow and a higher Re value. Consequently, the flow on the fracture is thought to be caused by the influence of the inertia term.<br>

収録刊行物

• ＳＯＩＬＳ　ＡＮＤ　ＦＯＵＮＤＡＴＩＯＮＳ

  ＳＯＩＬＳ　ＡＮＤ　ＦＯＵＮＤＡＴＩＯＮＳ 49 (4), 597-610, 2009

  公益社団法人 地盤工学会

キーワード

• cubic law
• direct shear test
• hydraulic conductivity
• numerical simulation
• rock fracture/discontinuity
• (<b>IGC</b>: F4)

詳細情報

• CRID: 1390001204665476224
• NII論文ID: 110007339532
• NII書誌ID: AA00700879
• DOI: 10.3208/sandf.49.597
• ISSN: 18811418
• ISSN: 00380806
• HANDLE: 2433/131799
• Web Site: https://api.elsevier.com/content/article/PII:S0038080620302845?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S0038080620302845?httpAccept=text/plain
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10450579
• 本文言語コード: en
• データソース種別:
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  • IRDB
  • Crossref
  • NDL-Digital
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可