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Tunneling for Lake Taps - Tunneling Short Course · BRIERLEY ASSOCIATES Agenda 1. Basic Tunneling...

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  • BRIERLEY ASSOCIATES

    Tunneling for Lake Taps

  • BRIERLEY ASSOCIATES

    Agenda

    1. Basic Tunneling

    Soft Ground Tunneling

    Hard Rock Tunneling

    Machine Selection

    2. Shafts

    3. Lake Taps

    Dry Tap

    Wet Tap

  • BRIERLEY ASSOCIATES

    Soft Ground Tunneling

    Hand Mining

    Sequential Excavation Mining

    Shields

    Earth Pressure Balance

    Slurry

  • BRIERLEY ASSOCIATES

    Hard Rock Tunneling

    Tunnel Boring Machines

    Road Header

    Drill & Blast

  • BRIERLEY ASSOCIATES

    Initial Support

    Ribs & Boards

    Liner plates

    Rock Bolts & Mesh

    Shotcrete

    Jacked pipe

  • BRIERLEY ASSOCIATES

    Tunneling Machine Selection

  • BRIERLEY ASSOCIATES

    Earth Pressure Balance (EPB) Machine

  • BRIERLEY ASSOCIATES

    EPB Machine

  • BRIERLEY ASSOCIATES

    Soft Ground Tunneling Slurry Shield with Drag Cutters

  • BRIERLEY ASSOCIATES

    Soft Ground Tunneling Slurry Circulation /

    Separation Equipment System

  • BRIERLEY ASSOCIATES

    Soft Ground Tunneling

    Slurry Separation Equipment

  • BRIERLEY ASSOCIATES

    Shaft Excavation

    Excavator

    Drill & Blast

    Blind Drills

  • BRIERLEY ASSOCIATES

    Shaft drilling

  • BRIERLEY ASSOCIATES

    Shaft Reamer

  • BRIERLEY ASSOCIATES

    Support

    Ribs & boards

    Liner plates

    Shotcrete, mesh & bolts

    Segments

    Other

  • BRIERLEY ASSOCIATES

    Lake Taps

    Dry Tap

    Wet Tap

  • BRIERLEY ASSOCIATES

    Dry Tap

  • BRIERLEY ASSOCIATES

    Excavation for work slab

  • BRIERLEY ASSOCIATES

    Concrete Slab Construction

  • BRIERLEY ASSOCIATES

    Ground Improvement

  • BRIERLEY ASSOCIATES

    Secant Pile Construction

  • BRIERLEY ASSOCIATES

    Drill shaft

  • BRIERLEY ASSOCIATES

    Set Steel Liner

  • BRIERLEY ASSOCIATES

    Grout Steel Liner

  • BRIERLEY ASSOCIATES

    Tunnel Arrival

  • BRIERLEY ASSOCIATES

    Connection to Tunnel

  • BRIERLEY ASSOCIATES

    Connection to Tunnel (cont.)

  • BRIERLEY ASSOCIATES

    Placing elbow in Tunnel

  • BRIERLEY ASSOCIATES

    Setting of Intake

  • BRIERLEY ASSOCIATES

    Setting of Intake (cont.)

  • BRIERLEY ASSOCIATES

    Wet Tap

    Norwegian Tap

    Microtunnel

  • BRIERLEY ASSOCIATES

    Norwegian Tap

    Tunnel to a rock plugConstruct Rock trapPrepare tunnel for waterBlast rock plug

  • BRIERLEY ASSOCIATES

    Microtunnel Tap

    Microtunnel Operation - No shaft In Lake

  • BRIERLEY ASSOCIATES

    Typical Microtunnel Operation

    Remotely controlled pipe jacking process

    Non-person entryPressurized closed face TBM (Slurry or EPB)

    Active direction controlAuger vs. slurry spoil transport

    Diameters: 1 to 10 ftDrive span: 30 to 200 m, typical

  • BRIERLEY ASSOCIATES

    Slurry Separation

  • BRIERLEY ASSOCIATES

    Microtunnel to 8 to10 ft. of Breakout

  • BRIERLEY ASSOCIATES

    Microtunnel to slope edge

  • BRIERLEY ASSOCIATES

    Bulkhead in Rear of MTBM

  • BRIERLEY ASSOCIATES

    Microtunnel Breakout

  • BRIERLEY ASSOCIATES

    Microtunnel Head Removal Preparation

  • BRIERLEY ASSOCIATES

    Microtunnel Head Removal

  • BRIERLEY ASSOCIATES

    Final Positioning of Casing

  • BRIERLEY ASSOCIATES

    Place Elbow & Trash Rack

  • BRIERLEY ASSOCIATES

    Creating Space

    Underground

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BRIERLEY ASSOCIATES Tunneling for Lake Taps
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