Christian Frenzel Herrenknecht

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EXPOMIN 2010 CHILE Reciclaje y Recuperacion de Metales y Materiales

Text of Christian Frenzel Herrenknecht

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    The Shaft Boring System for deep shafts.

    Christian Frenzel

    Santiago de Chile, April 16th, 2010

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Rio Tinto Mine of the FutureTM

    Program unveiled in Jan. 2008

    Create next generation technologies

    Block Cave Mining Method -Resolution Copper and Oyu Tolgoi

    Significant underground infrastructure prior to ore production.

    Aim - improve safety and speed of constructing underground

    infrastructure (shafts and tunnels).

    Civil tunnelling industry partners, contractors, and Rio Tinto

    Herrenknecht is our partner in shaft construction

    We are pleased to have this opportunity to present this

    breakthrough to the mining community

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    HERRENKNECHT AG.

    3,700 Employees Worldwide

    Schwanau, Germany

    Guangzhou, China

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Product Range.

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Accessing Deep Ore Bodies: Requirements.

    Vertical shafts (ventilation and production)

    Inner diameter: 10-12 m

    Depth: up to 2000 m

    Geology: hard rock

    Conventional ground support

    Increased safety

    Increased shaft construction rate

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    New Shaft Boring System for Deep Shafts in Rock.

    Approach for new concept

    Team approach Rio Tinto shaft contractor

    Use of existing technologies wherever possible

    Best possible access to bench area

    Full set of rock support options

    Possibility for pre-excavation grouting

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Existing Shaft Boring System for Shallow Shafts in Soils And Soft

    Rock.

    Dredging type submerged

    operation, partial face excavation

    Hydraulic muck transport

    Precast segmental lining

    70 100m depth

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Key Element for Mechanized Shaft Sinking

    Rock Excavation And Muck Removal

    Disc cutters for partial

    face rock excavation

    Muck removal by buckets

    and muck chutes

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Rock Excavation And Mucking Process.

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Shaft Boring System (SBS).

    Cutterhead (1)

    Dust shield (2)

    Rock bolters (3)

    Gripper system (4)

    Vertical conveyor (5)

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Mining Cycle.

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    SBS: Cross Section.

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    SBS Mucking System.

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Health Safety: Workplaces.

    S1: Below dust shield

    Permanent: none

    Only occasional activities

    S2: Main beam area

    Permanent: rock bolting

    Occasional: cutter changing

    S3: Infrastructure platforms

    Permanent: SBS operator

    SBS infrastructure

  • H E R R E N K N E C H T A G | U T I L I T Y T U N N E L L I N G | T R A F F I C T U N N E L L I N G

    Summary

    Rio Tinto and Herrenknecht partnership for Shaft Boring System

    development

    Concept development finished, detail engineering started

    Test site to be fixed in the near future