Installing Tapping and Plugging Fittings on Concrete Cylinder Pipe for Effective Pipeline Modification and Repair
Publication: Pipelines 2024
ABSTRACT
This paper discusses installing tapping and plugging fittings on concrete cylinder pipe for effective pipeline modification and repair. Rather than a technical discussion of a methodology to develop and analyze data, the author, based upon 10 years of experience as senior project manager for a global organization that, among other things, executed large diameter high pressure tapping and plugging projects, including concrete cylinder pipes, believed that it would be of interest to civil engineers to have additional information related to tapping and plugging the aforementioned pipe beyond that information usually available in some water works association publications. Topics included in the discussion are: tapping and plugging configuration and sequence; cylinder pipe cross sections; procedures and specifications for tapping and plugging; selection and design of appropriate fittings; proper fitting installation to achieve a positive seal on the pipe; and procedures for effective project execution. Except as otherwise indicated herein, the statements contained in this document are authoritative to the extent they reflect the above indicated experience of the author. This does not preclude that the experience and resulting conclusions of others may differ.
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REFERENCES
AWWA (American Water works Association). (2008). Concrete Pressure Pipe, Manual of Water Supply Practices M 9, Third Edition. AWWA, Denver, CO.
Herckis, C. (2023). “Specifications, Procedures and Fittings for Tapping and Plugging to Achieve Effective Pipeline Modification and Repair”, Proceedings American Society of Civil Engineers Pipelines Conference, San Antonio, TX, August 2023.
Herckis, C. (2017a). “Making Way for the Ho Chi Minh City Subway While Avoiding Suspension of Financial District Activities by Use of Triple Plugging and Bypasses”, Proceedings American Society of Civil Engineers Pipelines Conference, Phoenix, AZ, August 2017.
Herckis, C. (2017b). “Managing a Major Scope Change and Unforeseen Conditions During the Performance of a Hot Tap and Plugging Operation on a 90 Inch Concrete Cylinder Pipe to Enable Highway Improvements Without Service Interruption”, Proceedings American Society of Civil Engineers Pipelines Conference, Phoenix, AZ, August 2017.
Herckis, C. (2015). “Hot Tapping and Plugging Procedures Enable Replacement of Concrete Pressure Pipelines Reaching the End of Service Life Without Service Interruption”, Proceedings American Society of Civil Engineers Pipelines Conference, Baltimore, MD, August 2015.
Herckis, C. (2012). “Organizing and Managing the Implementation of Large Diameter Tapping and Plugging Technology for a Major Sanitary Improvement Project in Ho Chi Minh City, Vietnam”, Proceedings American Society of Civil Engineers Pipelines Conference, Miami Beach, FL, July 2012.
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Published online: Aug 30, 2024
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