Dependence of fracture geometry and spatial variation in pressure on hydraulic conductivity in rock fractures

K. Kishida, T. Hosoda, A. Sawada, H. Sato, S. Nakashima, H. Yasuhara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Although it is generally known that a natural rock fracture indicates a complex aperture distribution, the fracture is an ideal representation of the parallel plate model. The cubic law is applied to evaluate the hydraulic properties of fractured rock. From several previous research works, it is known that the cubic law can be applied when the Reynolds number is less than 1.0 and that the advection term can basically be ignored in such fracture flows. In this research work, two-dimensional seepage flow analyses, using the authors' proposed 2D model which is considered with the advection term, are carried out for single fracture hydro-conductivity experiments under conditions which allow for the application of the cubic law. From the numerical results, the validity of the 2D model is discussed along with the local Reynolds number and the application of the cubic law.

Original languageEnglish
Title of host publicationHarmonising Rock Engineering and the Environment - Proceedings of the 12th ISRM International Congress on Rock Mechanics
Pages1327-1330
Number of pages4
Publication statusPublished - Feb 13 2012
Externally publishedYes
Event12th International Congress on Rock Mechanics of the International Society for Rock Mechanics, ISRM 2011 - Beijing, China
Duration: Oct 18 2011Oct 21 2011

Publication series

NameHarmonising Rock Engineering and the Environment - Proceedings of the 12th ISRM International Congress on Rock Mechanics

Other

Other12th International Congress on Rock Mechanics of the International Society for Rock Mechanics, ISRM 2011
CountryChina
CityBeijing
Period10/18/1110/21/11

Keywords

  • Fluid flow
  • Lab testing
  • Numerical modelling
  • Rock joints

ASJC Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Kishida, K., Hosoda, T., Sawada, A., Sato, H., Nakashima, S., & Yasuhara, H. (2012). Dependence of fracture geometry and spatial variation in pressure on hydraulic conductivity in rock fractures. In Harmonising Rock Engineering and the Environment - Proceedings of the 12th ISRM International Congress on Rock Mechanics (pp. 1327-1330). (Harmonising Rock Engineering and the Environment - Proceedings of the 12th ISRM International Congress on Rock Mechanics).