Engineering Properties of Cohesive Soils in Northern Ontario

A. Tomory, M. Grabinsky, J.P. Dittrich, A. Bom

In the proceedings of: GeoMontréal 2013: 66th Canadian Geotechnical Conference; 11th joint with IAH-CNC

Session: Soil and Rock Mechanics II

ABSTRACT: A comprehensive database of geotechnical test data for Northern Ontario cohesive soils was statistically analyzed to evaluate the reliability of commonly used empirical correlations between laboratory index test results and engineering properties, including effective friction angle (f™), compression index (Cc), recompression index (Cr) and secondary compression index/strain (C(e) and C()). Improved correlations are suggested for Northern Ontario cohesive soils, especially for secondary compression indices. These results will be particularly useful to engineers undertaking preliminary analyses where only limited in situ and/or laboratory index test results are available and must be used to estimate engineering properties for design and also as a check on the results from high complexity laboratory tests.

RÉSUMÉ: Une base de données détaillée d'essais géotechniques pour sols cohésifs du Nord de l'Ontario a été statistiquement analysée afin d™évaluer la fiabilité des corrélations empiriques couramment utilisées entre les résultats des tests d'indice de laboratoire et les propriétés mécaniques, y compris l'angle de frottement effectif (f'), l™indice de compression (Cc), l'indice de recompression (Cr) et l™indice secondaire de compression / traction (C (e) et C ()). Une amélioration des corrélations est proposée pour sols cohésifs du Nord de l'Ontario, en particulier pour les indices de compression secondaire. Ces résultats seront particulièrement utiles aux ingénieurs qui entreprennent des analyses préliminaires où les résultats de tests in situ et / ou de test d™indice en laboratoire sont limités, pour estimer les propriétés d'ingénierie pour la conception et aussi pour vérification des résultats des tests de laboratoire de haute complexité.

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Cite this article:
A. Tomory; M. Grabinsky; J.P. Dittrich; A. Bom (2013) Engineering Properties of Cohesive Soils in Northern Ontario in GEO2013. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GeoMon2013Paper183,author = A. Tomory; M. Grabinsky; J.P. Dittrich; A. Bom,title = Engineering Properties of Cohesive Soils in Northern Ontario,year = 2013}