View
248
Download
1
Category
Preview:
Citation preview
Design & Construction
of Underground
Lake Taps
Agenda
1. Underground components
2. Shore Shaft
3. Tunnel
4. Tap/Intake
5. Construction Issues
Underground Components
Shore Shaft
Tunnel
Tap/Intake
Shore Shaft•Design
•Construction
Shore Shaft•Design•Location•Access
•Configuration• Size, Shape & Depth• Pump Station•Gate House• Construction
•Geology• Initial support•Connection to Tunnel•Final Lining
Shore Shaft•Construction•Excavation•Drilled•Mechanical Shaft Sinking Machine• Conventional Drill & Blast
•Lining• Top Down• Bottom Up
Tunnel
•Design
•Construction
Tunnel•Design•Alignment• Vertical• Horizontal
•Configuration• Size, Shape & Depth
•Geology• Initial support•Connection to Tap/Intake•Final Lining
Tunnel•Construction•Excavation• Tunnel Boring Machine•Microtunnel Boring Machine• Roadheader• Conventional Drill & Blast
•Lining• Pipe• Concrete• Segments
Tap/ Intake•Design
•Construction
Tap/ Intake•Design•Wet or Dry•Location• Vertical• Horizontal
•Configuration• Size, Shape & Depth
•Geology• Initial support•Structure• Support• Configuration
Tap/Intake •Construction
• Connection• Wet• Dry
•Marine• Marina• On Water
Wet Tap
Microtunnel Wet TapPrepare to Breakout
Microtunnel Wet TapBreakout
Microtunnel Wet TapPreparation to disconnect
Microtunnel Wet Tap
Microtunnel Wet TapPreparation to remove MTBM
Microtunnel Wet TapMTBM Removal
Wet TapFinal Positioning of Casing
Wet TapPlace Elbow & Trash Rack
Norwegian Tap
•Tunnel to a rock plug
•Construct Rock trap
•Prepare tunnel for water
•Blast rock plug
Dry Tap
Dry Tap
Dry TapExcavation for work slab
Dry TapConcrete Slab Construction
Dry TapGround Improvement
Dry TapLining installation
Dry TapShaft Excavation
Dry TapLiner Installation
Dry TapGrout Liner
Dry TapTunnel Arrival
Dry TapConnection to Tunnel
Dry TapConnection to Tunnel (cont.)
Dry TapPlacing elbow in Tunnel
Dry TapSetting of Intake
Dry TapSetting of Intake (cont.)
Construction IssuesAccessMarine worksWeather Environmental
QUESTIONS ???
Dry Tap
Recommended