Development of an in-situ testing device for hydraulic conductivity measurement in sands

Taizo Kobayashi, Hidetoshi Ochiai, Noriyuki Yasufuku, Kiyoshi Omine, Masafumi Kajiki, Takeshi Katsumi

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

Abstract

This research is aimed at the development of a new hydraulic conductivity measurement device using CPT technology that has a function of water pumping. This device measures flow rate and pressure of water inflow taken from an intake installed in the CPT probe. As a result of FEM (Finite Element Method) analysis to simulate the water low, it became clear that the relationship between the coefficient of permeability and the measured data can lie expressed as a simple multiplication formula with a constant. The constant, namely, a calibration factor which relates measured data to the coefficient of permeability, is also suggested in this paper. Moreover, to examine the actual behaviour of the water flow, two dimensional model tests are conducted with various sands and then the capability of the proposed method is verified.

Original languageEnglish
Title of host publication5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - Proceedings of the ISSMGE 5th Int. Congress
Pages518-524
Number of pages7
VolumeI
Publication statusPublished - 2006
Event5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - International Society of Soil Mechanics and Geotechnical Engineering's (ISSMGE) 5th International Congress - Cardiff, Wales, United Kingdom
Duration: Jun 26 2006Jun 30 2006

Other

Other5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - International Society of Soil Mechanics and Geotechnical Engineering's (ISSMGE) 5th International Congress
CountryUnited Kingdom
CityCardiff, Wales
Period6/26/066/30/06

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Environmental Engineering
  • Waste Management and Disposal

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  • Cite this

    Kobayashi, T., Ochiai, H., Yasufuku, N., Omine, K., Kajiki, M., & Katsumi, T. (2006). Development of an in-situ testing device for hydraulic conductivity measurement in sands. In 5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics - Proceedings of the ISSMGE 5th Int. Congress (Vol. I, pp. 518-524)