Use of a Differential Pressure Transducer for the Monitoring of Soil Volume Change in Cyclic Triaxial Test on Unsaturated Soils
Cui, Y
Ecole Nationale des Ponts et Chaussees, (CERMES), 6 et 8 avenue Blaise Pascal, Citý Descartes, Champs-sur-Marne, Marne-La-Vallýe cedex 2, 77455, France

Tang, A
Ecole Nationale des Ponts et Chaussees, (CERMES), 6 et 8 avenue Blaise Pascal, Citý Descartes, Champs-sur-Marne, Marne-La-Vallýe cedex 2, 77455, France

Marcial, D
IMME, Universidad Central de Venezuela, Facultad de Ingenieria, Ciudad Universitaria, Los Chaguaramos, Caracas, 1050–A, Venezuela

Terpereau, J
SNCF, 17 rue d'Amsterdam, Paris, 75008, France

Marchadier, G
SNCF, Direction de l'Ingýnierie, 6 avenue Franýois Mitterrand, 93574 La Plaine Saint-Denis cedex, France

Boulay, X
Ecole Nationale des Ponts et Chaussees, (CERMES), 6 et 8 avenue Blaise Pascal, Citý Descartes, Champs-sur-Marne, Marne-La-Vallýe cedex 2, 77455, France

(Received 13 March 2006; accepted 6 September 2006)

Abstract

A new experimental setup using a differential pressure transducer was developed, that enables the monitoring of volume changes in cyclic triaxial tests on unsaturated soils. Calibration tests were performed in order to analyze the performance of the setup, especially in terms of loading frequencies. Based on calibration results, a low frequency of 0.05 Hz was adopted for the tests carried out on the unsaturated loess from northern France. Five levels of water content were considered in the tests. The obtained results have confirmed the efficiency of the new system for volume change monitoring under cyclic loading. The effect of water content on the cyclic behavior of loess was clearly evidenced. Finally, some suggestions were made to improve the accuracy of the system.

ASTM International is a member of CrossRef.
Author Cui Y, Tang A, Marcial D, Terpereau J, Marchadier G, Boulay X Title Use of a Differential Pressure Transducer for the Monitoring of Soil Volume Change in Cyclic Triaxial Test on Unsaturated Soils Symposium , Committee on