Authors: Vanapalli, Sai K.; Garga, Vinod K.; Sedano, Julio .n.g.e.l.I.n.f.a.n.t.e.

Source: Canadian Geotechnical Journal, Volume 44, Number 8, August 2007 , pp. 1013-1018(6)

Publisher: NRC Research Press

Abstract:

This paper presents the design details of a simple compressible air column pressure gauge system. The main components of this pressure gauge consist of a Mariotte bottle, plastic tubing, and a graduated scale. This low-cost gauge design is based on applying the principle of Boyle's law for gases, which makes it particularly well-suited for the measurement of soil-water characteristics of coarse-grained soils, which desaturate at a faster rate, particularly in the low matric suction range of 0-10kPa. Among its many uses, this precise gauge is best employed in the axis translation technique to measure matric suction in the range of 0-700kPa.

Cet article présente les détails de la conception d'un système simple de jauge de pression de colonne d'air compressible. Les principales composantes de cette jauge de pression consiste en une bouteille de Mariotte, un tubage de plastique et une échelle graduée. Cette conception de jauge à faible coût est basée sur l'application du principe de la loi de Boyle pour les gaz. Ses caractéristiques la rendent particulièrement bien adaptée pour la mesure des caractéristiques sol-eau des sols à gros grains qui perdent leur saturation plus rapidement, particulièrement dans la plage de faible succion matricielle de 0 à 10kPa. Parmi ses nombreuses utilisations, cette jauge précise est le mieux utilisée dans la technique de translation d'axe pour mesurer la succion matricielle dans la plage de 0 à 700kPa.

Document Type: Research article

Publication date: 2007-08-01

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• Published since 1963, this monthly journal features articles, notes, and discussions related to new developments in geotechnical and geoenvironmental engineering, and applied sciences. The topics of papers written by researchers, theoreticians, and engineers/scientists active in industry include soil and rock mechanics, material properties and fundamental behaviour, site characterization, foundations, excavations, tunnels, dams and embankments, slopes, landslides, geological and rock engineering, ground improvement, hydrogeology and contaminant hydrogeology, geochemistry, waste management, geosynthetics, offshore engineering, ice, frozen ground and northern engineering, risk and reliability applications, and physical and numerical modelling. Papers on actual case records from practice are encouraged and frequently featured.
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