Pile Response Adjacent to Braced Excavation
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 129, Issue 4
Abstract
The excavation of soil for the construction of basements or cut-and-cover tunnels results in ground movements. One particular concern is that the excavation-induced lateral soil movements may adversely affect any nearby pile foundation. The lateral loads imposed by the soil movements induce bending moments and deflections in the pile, which may lead to structural distress and failure. This paper presents the results of an actual full-scale instrumented study that was carried to examine the behavior of an existing pile due to nearby excavation activities resulting from the construction of a 16 m deep cut-and-cover tunnel. The pile was located 3 m behind a 0.8 m thick diaphragm wall. Excavation to the formation level that was 16 m below the ground surface resulted in a maximum lateral pile movement of 28 mm. A simplified numerical procedure based on the finite-element method was used to analyze the pile response. Generally, the theoretical predictions were in reasonable agreement with the measured results.
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References
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Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 129 • Issue 4 • April 2003
Pages: 383 - 386
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Jun 5, 2001
Accepted: Sep 13, 2002
Published online: Mar 14, 2003
Published in print: Apr 2003
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