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PVC PIPE APPLICATIONS > STORM SEWER > ENGINEERING DESIGN
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buried pipe design articles
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Like other flexible pipe materials, PVC experiences ring deflection in response to external loads. Two PVC Pipe News articles review the deflection-response mechanism. The first article is "Back to Basics: Time Dependent Variables for Flexible Sewer Pipe." The article reviews the key elements that determine the long-term ring deflection that a flexible pipe will experience. It will also show that the time-dependent elements do not include creep. The second article is "A More Typical Deflection Response."
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buried pipe design software
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Clicking the download button brings up a menu for Uni-Bell's design software, "External Load Design for Flexible Conduits." The software is not exclusive to PVC. It may be used for calculating the long-term deflections of any flexible pipe material.
Uni-Bell Software Download Instructions:
Please follow these instructions to download and install the software on your local system. The file size of UniBell_LoadDesign.zip is 2.2 MB. Estimated time to download with a 56k modem is 2 minutes.
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Complete the download to a folder you can access on your local system.
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After completion of the download, locate the file UniBell_LoadDesign.zip on your local system.
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The UniBell_LoadDesign.zip file is a zip file. Upon double-clicking the file, it will open to show 3 individual files. You may want to move the file to an individual folder before extracting the files.
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After double-clicking on the UniBell_LoadDesign.zip, click on the button marked “Extract”. You will be prompted for the destination folder to extract the 3 files contained in UniBell_LoadDesign.zip.
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After selecting a destination, click “Extract”. The 3 files will be extracted to the destination that you selected.
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Exit from the UniBell_LoadDesign.zip file.
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Locate the files extracted on your local drive using Windows Explorer.
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Double-click on setup.exe to start the installation of the software on your local system
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buried pipe design technical report
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This Uni-Bell Technical Report, "UNI-TR-1, Deflection: The Pipe/Soil Mechanism," details design procedures for predicting long-term deflection of buried PVC pipe.
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PVC sewer Pipe standarDS
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Seven PVC Sewer Pipe Standards are summarized on a single sheet.
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ring deflection
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ASTM standards limit ring deflection to 7.5%. The PVC Pipe News article, "Deflection: What Are the Limits?" looks at performance issues when ring deflections exceeds 7.5%.
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sewer hydraulics
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How does ring deflection affect the hydraulic capacity of buried PVC sewer pipe? Read "The Effects of Deflection on Sewer Hydraulics, The Sequel," from PVC Pipe News.
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SHALLOW BURY
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Article and photo demonstrate how flexible PVC can be used in shallow bury applications.
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UNi-bell sample pvc storm drainage pipe specification
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This sample is offered to those who would like to use PVC in their next project or who would like to add PVC to their specifications.
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