Settlement of deep footings in reconstituted sand

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The paper examines methods for predicting the settlement of deep footings in reconstituted sand. Results from vertical load tests on deep circular plates within a laboratory pressure chamber are interpreted using data from triaxial tests, cone penetration tests (CPTs), and pressuremeter tests obtained for the same reconstituted sand. A simple nonlinear CPT-based relationship is shown to match the response observed in the plate tests and be consistent with finite element analyses as well as other comparable physical tests. The relationships between foundation stiffness and the sand's small-strain stiffness, its stiffness at 50% mobilized strength, and its response to pressuremeter loading are also explored. Comparisons with full-scale tests in the field reveal a strong effect of ageing on foundation stiffness, which appears to be better captured by small-strain stiffness than CPT end resistance. Measurements confirm that vertical loading of a deep plate is analogous to the expansion of a spherical cavity.

Original languageEnglish
Pages (from-to)449-459
Number of pages11
JournalCanadian Geotechnical Journal
Volume56
Issue number3
DOIs
Publication statusPublished - Mar 2019

Fingerprint

Dive into the research topics of 'Settlement of deep footings in reconstituted sand'. Together they form a unique fingerprint.

Cite this