User contributions for Camrenbt

23 June 2022

• 17:5617:56, 23 June 2022 diff hist 0‎ N File:PTD3.jpg ‎No edit summary current
• 17:5517:55, 23 June 2022 diff hist 0‎ N File:PTD2.jpg ‎No edit summary current
• 17:5517:55, 23 June 2022 diff hist 0‎ N File:PTD1.jpg ‎No edit summary current
• 17:5117:51, 23 June 2022 diff hist +43‎ Rehab vs. Replacement ‎No edit summary
• 17:5017:50, 23 June 2022 diff hist +68‎ Rehab vs. Replacement ‎No edit summary
• 17:5017:50, 23 June 2022 diff hist +2,262‎ N ⚠ Gather Information Before Design ‎ Created page with "<div style= "text-align:center;">''Message: Pulling a "Smart Pig" through the existing conduit can identify if sliplining is a possibility.''</div> ----</br> This project sought to rehabilitate a 100 year-old outlet conduit. The existing conduit consisted of a 24” diameter Riveted Steel Pipe conduit with Corrugated Metal Pipe extension installed when the dam was enlarged. The proposed rehab design was to slipline a 20" OD SDR 15.5 HDPE pipe and grout the annular space..."
• 17:5017:50, 23 June 2022 diff hist 0‎ N File:GIB4.jpg ‎No edit summary current
• 17:5017:50, 23 June 2022 diff hist 0‎ N File:GIB3.jpg ‎No edit summary current
• 17:4917:49, 23 June 2022 diff hist 0‎ N File:GIB2.jpg ‎No edit summary current
• 17:4917:49, 23 June 2022 diff hist 0‎ N File:GIB1.jpg ‎No edit summary current
• 17:4417:44, 23 June 2022 diff hist +2,593‎ N Rehab vs. Replacement ‎ Created page with "Can you rehab or do you need to replace? The first question the designer needs to ask is whether the conduit should be replaced or is a good candidate for rehabilitation. Conduit replacement is likely the approach providing the greatest reliability, but that approach will most likely require draining of the reservoir and be the highest cost option. In some cases, rehabilitation provides a reasonable alternative. Rehabilitation Replacement Abandonment '''Ad..."
• 17:4417:44, 23 June 2022 diff hist 0‎ N File:Low-Level Conduits - Rehab or Replace?.pdf ‎No edit summary current
• 17:3117:31, 23 June 2022 diff hist +529‎ N Existing Conditions ‎ Created page with "Before beginning any project pertaining to your dam's outlet works, it is very important to understand the current condition of the conduit. Many conduits may initially look decent, but further investigation shows that the pipe is in need of repair. Missing coatings, corrosion at joints, poor gate condition, and missing corrosion protection are "red flags", and indicate the need for careful intervention. *Pipe Deterioration *Seepage and Piping *Operation *E..."
• 17:2217:22, 23 June 2022 diff hist +1,636‎ N Closed Conduit Television Camera ‎ Created page with "<div style= "text-align:center;">''Message: Using a mobile video camera mounted on a sled is a cost effective method to inspect straight conduits''</div> ----</br> Utilizing a CCTV camera mounted on a self-propelled robotic crawler is the most common way to effectively inspect a CMP conduit. An operator controls the movement of the crawler and the operation of the CCTV camera. Real-time video is transmitted to an aboveground monitor, which the operator uses to determine..."
• 17:2217:22, 23 June 2022 diff hist 0‎ N File:GPS3.jpg ‎No edit summary current
• 17:2217:22, 23 June 2022 diff hist 0‎ N File:GPS2.jpg ‎No edit summary current
• 17:2217:22, 23 June 2022 diff hist 0‎ N File:GPS1.jpg ‎No edit summary current
• 17:1617:16, 23 June 2022 diff hist −1‎ Erosion/Energy Dissipation ‎No edit summary
• 17:1617:16, 23 June 2022 diff hist 0‎ File:Erosion2.jpg ‎ Camrenbt uploaded a new version of File:Erosion2.jpg current
• 17:1417:14, 23 June 2022 diff hist +509‎ N Erosion/Energy Dissipation ‎ Created page with "The terminal end of an outlet works must be designed to resist erosion. Should the decision be made to rehabilitate a dam, lack of consideration of erosion in the stilling basin could result in damage to a newly installed system. <gallery mode="slideshow"> File:Erosion1.jpg File:Erosion2.jpg File:Erosion3.jpg </gallery> ==Types of Erosion== *Headcuts in stream can lead to failure *Erosion that cuts into the toe of dam can cause embankment instability Categ..."
• 17:1417:14, 23 June 2022 diff hist 0‎ N File:Erosion3.jpg ‎No edit summary current
• 17:1417:14, 23 June 2022 diff hist 0‎ N File:Erosion2.jpg ‎No edit summary
• 17:1417:14, 23 June 2022 diff hist 0‎ N File:Erosion1.jpg ‎No edit summary current
• 17:1117:11, 23 June 2022 diff hist +27‎ Investigation Methods ‎No edit summary
• 17:1017:10, 23 June 2022 diff hist +43‎ Operation ‎No edit summary
• 17:1017:10, 23 June 2022 diff hist +43‎ Seepage and Piping ‎No edit summary
• 17:1017:10, 23 June 2022 diff hist +43‎ Pipe Deterioration ‎No edit summary
• 17:0917:09, 23 June 2022 diff hist +1,367‎ N Go-Pro Mounted on a Sled ‎ Created page with "<div style= "text-align:center;">''Message: Using a mobile video camera mounted on a sled is a cost effective method to inspect straight conduits.''</div> ----</br> Using a mobile video camera, such as a GoPro®, mounted on a sled is a cost effective method to inspect straight (without bends or undulations) conduits, especially conduits at remote dam sites given its small size and ease of transport. The sled can be easily manufactured and attached to a metal push pipe w..."
• 17:0917:09, 23 June 2022 diff hist 0‎ N File:GPM8.jpg ‎No edit summary current
• 17:0917:09, 23 June 2022 diff hist 0‎ N File:GPM7.jpg ‎No edit summary current
• 17:0817:08, 23 June 2022 diff hist 0‎ N File:GPM6.jpg ‎No edit summary current
• 17:0817:08, 23 June 2022 diff hist 0‎ N File:GPM5.jpg ‎No edit summary current
• 17:0817:08, 23 June 2022 diff hist 0‎ N File:GPM4.jpg ‎No edit summary current
• 17:0717:07, 23 June 2022 diff hist 0‎ N File:GPM3.jpg ‎No edit summary current
• 17:0717:07, 23 June 2022 diff hist 0‎ N File:GPM2.jpg ‎No edit summary current
• 17:0717:07, 23 June 2022 diff hist 0‎ N File:GPM1.jpg ‎No edit summary current
• 16:5516:55, 23 June 2022 diff hist +1,064‎ N Investigation Methods ‎ Created page with "==Camera Inspections== Unmanned camera inspections can include the use of manually or power propelled systems equipped with still, real-time and recorded video, and/or closed circuit television (CCTV) cameras. Camera inspections are beneficial because manned entry is not required, small diameter conduit can be inspected, the recording can be compared to previous recodings, and an engineer can perform an off-site evaluation. Hiring an experienced camera operator is import..."
• 16:5416:54, 23 June 2022 diff hist 0‎ N File:CMP Conduit Inspection Techniques.pdf ‎No edit summary current
• 16:5016:50, 23 June 2022 diff hist +883‎ N Erosion that cuts into the toe of dam can cause embankment instability ‎ Created page with "<div style= "text-align:center;">''Message: Erosion that cuts into the toe of dam can cause embankment instability.''</div> ----</br> OUTLET RELEASES ERODING THE TOE OF THE DAM — when reservoir water flowing through the outlet pipe causes a scour hole to develop underneath the outlet pipe. This erosion can be caused by an outlet pipe that is too short. It also can be caused when the end of the outlet pipe does not have an energy-dissipating pool or structure. If the t..."
• 16:5016:50, 23 June 2022 diff hist 0‎ N File:ER2.jpg ‎No edit summary current
• 16:5016:50, 23 June 2022 diff hist 0‎ N File:ER1.jpg ‎No edit summary current
• 16:2016:20, 23 June 2022 diff hist +1‎ Headcuts in stream can lead to failure ‎No edit summary
• 16:2016:20, 23 June 2022 diff hist 0‎ File:HIS4.jpg ‎ Camrenbt uploaded a new version of File:HIS4.jpg current
• 16:1616:16, 23 June 2022 diff hist +979‎ N Headcuts in stream can lead to failure ‎ Created page with "<div style= "text-align:center;">''Message: Address headcuts quickly''</div> ----</br> A headcut formed downstream of this Montana Dam. The outlet was relocated to the opposite side of the dam, away from the original channel. The discharge from the dam was forced to travel down a new channel, most likely causing the headcut. The dam could have been protected using a grade-control structure, which would have stopped the headcut from progressing. <gallery mode="slideshow..."
• 16:1616:16, 23 June 2022 diff hist 0‎ N File:HIS10.jpg ‎No edit summary current
• 16:1616:16, 23 June 2022 diff hist 0‎ N File:HIS9.jpg ‎No edit summary current
• 16:1616:16, 23 June 2022 diff hist 0‎ N File:HIS8.jpg ‎No edit summary current
• 16:1516:15, 23 June 2022 diff hist 0‎ N File:HIS7.jpg ‎No edit summary current
• 16:1516:15, 23 June 2022 diff hist 0‎ N File:HIS6.jpg ‎No edit summary current
• 16:1516:15, 23 June 2022 diff hist 0‎ N File:HIS5.jpg ‎No edit summary current