Grouting Methods in Manhole Rehabilitations at Coastal Areas: Case Study
Publication: Journal of Pipeline Systems Engineering and Practice
Volume 12, Issue 3
Abstract
For underground structures at coastal areas, inflow/infiltration () control is a critical procedure to guarantee their quality, especially for manholes, which are more likely to have structural problems and problems. There are several methods that could address these problems, including spraying, grouting, and in situ lining. In this case study, a combined grouting method is proposed for a deep-buried double-walled manhole rehabilitation project, the Diyar Al Muharraq (DAM) project in Bahrain. This case study involves investigation, rehabilitation design, construction management, and evaluation of rehabilitation according to the monitoring data. The 4-step grouting method shows an excellent rehabilitation performance, the monitoring data show that the water level in manholes lowered by 21.35%, and the brine pressure at the bottom of manholes decreased by 78.26%, which means the combined grouting method is effective for manhole rehabilitation at coastal areas.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The Diyar Al Muharraq project was supported by Cebarco and financial support was provided by Xiamen Anyue Trenchless Engineering Technology Co. Xiamen Anyue Trenchless Engineering Technology Co. provided the materials and experienced operators, and Dirk Geraedts and engineers at Cebarco provided technical support. The authors thank them for their assistance. Thanks are given to Mr. Brain Kirby, supervisor of the site, who has passed away. His general help and devotion to our work are appreciated; he will be missed.
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Information & Authors
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Published In
Journal of Pipeline Systems Engineering and Practice
Volume 12 • Issue 3 • August 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Jul 10, 2020
Accepted: Nov 16, 2020
Published online: May 7, 2021
Published in print: Aug 1, 2021
Discussion open until: Oct 7, 2021
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