TMP_Existing Design_Procedure.pdf
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- Attached to
- Fort Randall Major Unit Rehabilitation Project
- Solicitation number
- W9128F21R0005
About this file
This document contains a federal contract solicitation and related technical file. The solicitation is for the Fort Randall Major Unit Rehabilitation Project to be awarded by the Department of the Army Corps of Engineers Engineering District Omaha. Interested parties must submit responses by March 25, 2021 at 2pm Central. The solicitation is unrestricted and open to both large and small businesses. A site visit will be held on either January 12 or 13, 2021 from 9am, with attendance limited due to COVID-19 restrictions. The technical file provides instructions for installing a cavitation scaffolding system on a hydroelectric unit, including safety procedures and equipment placement.
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Text version
Cavitation scaffolding set up
1. Unwater and place Maintenance clearances on the unit.
2. Put brackets on the doors going into the draft tube door slots make sure you install bolts into door bolt holes.
3. Put I-beams through door openings onto brackets, then bolt them down. (You need a rope to pull items from one side to the other).
4. Install a sling on the stay vanes. (fall protection tie off point)
5. Put fall protection harness on to hook into the slings.
6. Put deckplate on top of beams and bolt down. (You will need a rope to pull decking across the I-beams.)
7. Install I-Beams in through the door opening for hand rails and bolt them down.
8. Start putting up scaffolding has numbers and paint on it for installation. Two people are needed in side on walk way and two people outside handing items in.
9. Start installing scaffolding on the upstream side, then work your way to the downstream side. I-beams and hooks need to be put up in the groove on the runner. Ensure chains are not twisted.
Install Decking at the same time you are putting the I-beams up make sure you install the bolts as you put it together.
10. Once you have all the scaffolding up you need to put in 4 wedges so the scaffolding doesn’t move.
11. Put in the steps that are going into the draft tube and to the scaffolding.
12. Put the Lights in now.
13. Move wicket gates to position so a person can get though.
14. Put the wicket gates on just about 35%
15. Put a sealer around the wicket gates and the runner opening.
16. Start putting in the welders, air hoses, cords
File details come from the government source that posted it. Updated .