Inspection and Risk Assessment of Mechanically Stabilized Earth Walls Supporting Bridge Abutments
Publication: Journal of Performance of Constructed Facilities
Volume 32, Issue 1
Abstract
Using a mechanically stabilized earth (MSE) wall as a bridge abutment has become an attractive option to the traditional cast-in-place wall abutment. The use of an MSE wall abutment notably simplifies the design and construction of the bridge abutment, requires less site preparation, allows faster construction, and consequently leads to cost saving. The poor performance of an MSE wall may be related to construction conditions, the wall materials, and poor soil below the foundations. In this paper, the results of a large-scale inspection program are analyzed to identify the most frequent MSE wall problems, and a new inspection rating system procedure is proposed. This paper also presents a risk assessment method to determine the overall rating of the MSE wall after inspection and suggests a course of action. Finally, the paper presents recommendations for the design and construction methods to avoid future problems.
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Published In
Journal of Performance of Constructed Facilities
Volume 32 • Issue 1 • February 2018
Copyright
©2017 American Society of Civil Engineers.
History
Received: Dec 29, 2016
Accepted: Aug 28, 2017
Published online: Dec 14, 2017
Published in print: Feb 1, 2018
Discussion open until: May 14, 2018
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