A new laboratory test for shear fracture formation and its permeability measurement

T. Ito, T. Shono, K. Sekine, K. Yamamoto

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

Abstract

We propose a new testing method which allows us to create a single shear fracture and measure its permeability sequentially under confining pressure, once a specimen is set to an apparatus. Then the shear sliding of fracture occurs while keeping contact of the fracture surfaces, as expected to occur in subsurface rocks subjected to compressive stresses. We constructed the apparatus and applied it to the tests using Kimachi sandstone as a rock sample. Results show that permeability of the rock increased with existence of a shear fracture, however the increment was not so significant compared with the original permeability and there was no clear correlation between the permeability increment and shear displacements of the fracture surfaces.

Original languageEnglish
Title of host publicationHarmonising Rock Engineering and the Environment - Proceedings of the 12th ISRM International Congress on Rock Mechanics
Pages645-648
Number of pages4
Publication statusPublished - 2012 Feb 13
Event12th International Congress on Rock Mechanics of the International Society for Rock Mechanics, ISRM 2011 - Beijing, China
Duration: 2011 Oct 182011 Oct 21

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
Period11/10/1811/10/21

Keywords

  • Fluid flow
  • Lab testing
  • Rock joints
  • Rock properties

ASJC Scopus subject areas

  • Geology
  • Geotechnical Engineering and Engineering Geology

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