Geotechnical Investigations for Evaluating the Performance of the Misaligned MSE Wall: a Case Study

Sitharam, TG and Hegde, A (2018) Geotechnical Investigations for Evaluating the Performance of the Misaligned MSE Wall: a Case Study. In: Transportation Infrastructure Geotechnology, 5 (4). pp. 332-348.

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Abstract

This paper presents the details of the geotechnical investigations carried out to evaluate the performance of the misaligned Mechanically Stabilized Earth (MSE) wall in India. The reported MSE wall is part of the approach to the railway over bridge in Hyderabad-Bangalore highway. The MSE wall of height 13.85Â m was misaligned vertically after the highway was opened to traffic in 2010. Initially, the only option seemed was to dismantle and reconstruct the MSE wall. However, the detailed geotechnical investigation revealed that the existing wall can be retained with minor repair works. As part of the geotechnical investigations, both field tests and the design analyses were performed. The field tests included standard penetration test, multichannel analyses of surface waves, and ground penetrating radar. The design analysis included the stability assessment of the MSE wall using SLIDE software. The results of the investigations revealed that there was no structural instability in the wall. The major cause of the misalignment was attributed to poor construction practices. As part of the rehabilitation, minor repair works were performed. After the completion of the rehabilitation, the wall has sustained heavy traffic loads in the past 5Â years without developing any additional misalignment or cracks.

Item Type:	Journal Article
Publication:	Transportation Infrastructure Geotechnology
Publisher:	Springer US
Additional Information:	The copyright for this article belongs to Springer US.
Keywords:	Field tests; Geosynthetics; Geotechnical investigations; Misalignment; MSE wall; Remedial measures; Stability analysis
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	03 Aug 2022 11:59
Last Modified:	03 Aug 2022 11:59
URI:	https://eprints.iisc.ac.in/id/eprint/75280

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