Research Article
Sep 1966
Design of a Differential Pore Pressure Manometer and Its Time Lag Characteristics
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VIEW THE REPLYAuthors: Jagdish Narain, M.ASCE, and Bhawani SinghAuthor Affiliations
Publication: Journal of the Soil Mechanics and Foundations Division
Volume 92, Issue 5
Abstract
A new differential pore pressure manometer has been used to record pore pressure at the center of the specimen. Gibson's theoretical analysis for time lag in base pore pressure is confirmed experimentally. Empirical equations are developed to predict time lag in pore-pressure measurement at the base as well as the center of the specimen. The technique of pore-pressure measurement by various kinds of probes is examined. Two sources of error—(1) choking of filter tip and (2) difference of ionic concentration in pore water and water in lead—are noted and remedial procedure suggested.
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 92 • Issue 5 • September 1966
Pages: 93 - 108
Copyright
© 1966 American Society of Civil Engineers.
History
Published in print: Sep 1966
Published online: Feb 12, 2021
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Affiliations
Jagdish Narain, M.ASCE
Prof. of Civ. Engrg., Univ. of Roorkee, Roorkee, India
Bhawani Singh
Lecturer in Civ. Engrg., Univ. of Roorkee, Roorkee, India
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