Slipline Example 1: Difference between revisions
(Created page with "<div style= "text-align:center;">''Message: Sliplining large diameter pipe takes extra planning.''</div> ----</br> <gallery mode="slideshow"> File:1SE1.jpg|As part of a major dam rehabilitation project, an 84-inch arch concrete outlet was slip lined with a 72-inch diameter welded steel pipe. File:1SE2.jpg|Due to the pipe size and other construction restrictions, the steel pipe was inserted into the outlet in multiple sections. A trolley system for moving the pipe up the...") |
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''Note: The content on this page was originally created as part of DamOutletWorks.org (DOWL, 2018). It has subsequently been updated and reformatted as part of the Dam Safety Toolbox.'' | |||
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Revision as of 20:00, 15 September 2022
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As part of a major dam rehabilitation project, an 84-inch arch concrete outlet was slip lined with a 72-inch diameter welded steel pipe.
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Due to the pipe size and other construction restrictions, the steel pipe was inserted into the outlet in multiple sections. A trolley system for moving the pipe up the conduit was constructed by the contractor in order to both increase safety and to minimize damage to the pipe
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After placement, the joints between the sections of pipe were welded. Each weld was tested to ensure there were no defects in the joints.
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Grout injection gallery.
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This sliplining project had a relatively large annular space to grout. Grout was placed in four separate lifts using a grouting gallery in order to control fluid pressure on the pipe, floatation of the pipe, bleed water from the grout, and the heat produced during the grout curing process.
Note: The content on this page was originally created as part of DamOutletWorks.org (DOWL, 2018). It has subsequently been updated and reformatted as part of the Dam Safety Toolbox.
Revision ID: 3163
Revision Date: 09/15/2022