Crosshole permeability testing method in bedrock

Isao Motojima, Iichiro Kono, Makoto Nishigaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Equipment for the crosshole permeability test was developed, and the large-scale permeability test and the sinusoidal pressure test performed in low permeability deep bedrock and other area. The results were summarized as follows: 1) Large-scale permeability tests are useful testing methods to evaluate the average permeability of a relatively large rock mass. 2) The results of sinusoidal pressure tests in low permeability deep bedrock show that the bedrock storage properties are strongly influenced by the joint system, as demonstrated by the fact that the direction of the response of sinusoidal pressure tests coincides with the dominant direction of joints. The sinusoidal pressure tests are also useful to calculate the hydraulic diffusivity and specific storage coefficient and to investigate the hydraulic characteristics related to the joint system in bedrock. 3) A method for calculating the coefficient of permeability using the sinusoidal pressure test was proposed. The in-situ application achieved favorable results showing the effectiveness of this method.

Original languageEnglish
Pages (from-to)108-120
Number of pages13
JournalSoils and Foundations
Volume33
Issue number4
Publication statusPublished - Dec 1993
Externally publishedYes

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testing method
bedrock
permeability
Testing
Hydraulics
hydraulics
Rocks
test
diffusivity
rock

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Geotechnical Engineering and Engineering Geology

Cite this

Crosshole permeability testing method in bedrock. / Motojima, Isao; Kono, Iichiro; Nishigaki, Makoto.

In: Soils and Foundations, Vol. 33, No. 4, 12.1993, p. 108-120.

Research output: Contribution to journalArticle

Motojima, I, Kono, I & Nishigaki, M 1993, 'Crosshole permeability testing method in bedrock', Soils and Foundations, vol. 33, no. 4, pp. 108-120.
Motojima, Isao ; Kono, Iichiro ; Nishigaki, Makoto. / Crosshole permeability testing method in bedrock. In: Soils and Foundations. 1993 ; Vol. 33, No. 4. pp. 108-120.
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