4.5 Penstock and Valves The penstock is a pipe that carries water
120 inch steel penstock - Home | ASCE · 2016-08-09 · of the Wye 7 ’-6’’ 16’-3 ......
Transcript of 120 inch steel penstock - Home | ASCE · 2016-08-09 · of the Wye 7 ’-6’’ 16’-3 ......
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120 inch steel penstock
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120 inch steel penstock
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Bechtel Award PresentationWye Section Outside the tunnel directing the
flow from the Olivenhain Reservoir to the power
generation and returning the pumped flow from
Lake Hodges back to Olivenhain Reservoir.
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8/9/2016 4
Dimensions and Baseline Model of the Wye
7’-6’’ 16’-3’’ 18’-0’’ 5’-0’’
30’’
150’’
Pipe wall = 1.25” thick
Crotch plates = 7.00” thick
121½’’ ID
84’’ ID
84’’ ID
Height of crotch plates over the pipe
surface is 30.0” at intersection point.
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Bechtel Award Presentation
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Maximum Principle Stresses in Cylinder and
Crotch Plates with 16-inch- diameter Steel Tube
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Plastic Strain in Crotch Plate at Bifurcation, Figure 15
• Negligible plastic yielding may occur only at one location in the 7” thick crotch plates (at the bifurcation)
• Adding tube reduces the maximum plastic strain
No tube 16” OD tube at intersection
Max pl. strain 0.27% 0.135%
Plastic yielding on
upper edge is eliminated
by adding the tube
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132 inch-Diameter ECIS & 96 inch Diameter
NEIS Sewer Tunnel Projects
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132 Inch Diameter ECIS Sewer Tunnel Project
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Bechtel Award Presentation
Henry H. Bardakjian, P.E Consulting Engineer, Glendale, CA. Email: [email protected]
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A Hand- Mined Hole is Dug for the
Future Lateral outlet
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The Lateral Outlet is Pushed on Rail in the
Dug Hole
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A Lateral Branch is being Welded to the Main
Steel Body
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The Lateral is Welded to the Stiffened
Steel Main Body in the Tunnel
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132 inch X 96 inch Tangential Junction at 30 Degrees Between ECIS and NEIS Projects
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96-inch Branch for the Junction Fitting
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Thank you for Listening