Slipline Example 1: Difference between revisions
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[[Category:Rehab vs. Replacement Outlet Works]] | |||
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''' ''Message: Sliplining large diameter pipe takes extra planning.'' ''' | |||
<gallery mode="slideshow"> | <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: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 conduit was constructed by the contractor in order to both increase safety and to minimize damage to the 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 conduit was constructed by the contractor in order to both increase safety and to minimize damage to the pipe | ||
File:1SE3.jpg|After placement, the joints between the sections of pipe were welded. Each weld was tested to ensure there were no defects in the joints. | File:1SE3.jpg|After placement, the joints between the sections of pipe were welded. Each weld was tested to ensure there were no defects in the joints. | ||
File:1SE4.jpg|Grout injection gallery. | File:1SE4.jpg|Grout injection gallery. | ||
File:1SE5.jpg|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. | File:1SE5.jpg|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. | ||
</gallery> | </gallery> | ||
Latest revision as of 00:27, 2 December 2022
Message: Sliplining large diameter pipe takes extra planning.
-
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.
-
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
-
After placement, the joints between the sections of pipe were welded. Each weld was tested to ensure there were no defects in the joints.
-
Grout injection gallery.
-
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: 4699
Revision Date: 12/02/2022