Risk Management - TBM Manufacturer’sunder Management - TBM Manufacturer’s ... 1.8 Propulsion System ... TBM Supplier Risk Management TBM Manufacturer’sRoles in Project Risk Management

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  • Lovsuns Tunneling Canada Ltd.

    Risk Management - TBM Manufacturers

    Perspective II

    November 14-16, 2016

  • Lovsuns Tunneling Canada Ltd.

    History of LOVSUNS

    350 TBMs Built to Date

  • Lovsuns Tunneling Canada Ltd.

    History of Risk Management Techniques

    Developed in the Late 60s by NASA

    during the Apollo Mission

    In 1974, US Navy Adopted it in the

    Weapons Program

    In the Late 1970s the Automotive

    Industries was Driven by Liability Cost

    to Use FMEA and Later Required

    Suppliers to do the Same

  • Lovsuns Tunneling Canada Ltd.

    Types of Risk Assessment

    System Risk Assessment

    Highest Level Risk Assessment and Focus on System Related Deficiencies

    such as Safety System, System Interfaces or Integration between

    Subsystems to Humans and/or Environment.

    Design Risk Assessment

    Focuses on Product Design with Emphasis on Minimizing Design Risk and

    Ensuring Product Operation is Safe and Reliable During Equipment life.

    Process Risk Assessment

    Focuses on Operation or Assembly Process with Emphasis on how

    Process Risk can be Minimized to Ensure the Product is Built to Design

    Requirement in a Safe Manner with Minimal Downtime, Waste and Rework.

  • Lovsuns Tunneling Canada Ltd.

    Types of Risk Assessment

    1.0 RME257SE EPB TBM

    1.1 Cuttinghead System

    1.2 Main Drive System

    1.3 Main Drive Sealing System

    1.4 RFJ System

    1.5 Active Articulation System

    1.6 Passive Articulation System

    1.7 Airlock System

    1.8 Propulsion System

    1.8.1 Propulsion Cylinders

    1.8.2 Propulsion Pump

    1.8.3 Propulsion Manifolds

    1.8.4 Propulsion Pads

    1.9 Screw Conveyor System

    System Level Item

    Identification

    Design Level Item

    Identification

  • Lovsuns Tunneling Canada Ltd.

    Conducting Risk Assessment Analysis

    Risk Management Process should be Part of your Project Management

    Plan and should Start at the Project Planning Stage:-

    Key Inputs Required

    - Project Charter

    - Project Management Plan

    - Stakeholder Register

    - Enterprise Environmental factors

    - Organizational Process Assets

  • Lovsuns Tunneling Canada Ltd.

    Tips

    - Break it Down (by System, by Function, by Process)

    - Agreed on a Scaling System First

    - Draw From Past Successes and Failures

    - Involve the Right People (SME)

    - Do it in Multiple Sessions

    - Take a Course in Conflict Resolution and How to Manage a Meeting

    The Process Does Get Easier the Third Time Around!!!

    Conducting Risk Assessment Analysis

  • Lovsuns Tunneling Canada Ltd.

    TBM Suppliers Perspective on Risk

    Management

  • Lovsuns Tunneling Canada Ltd.

    TBM Supplier Risk Management

    TBM Manufacturers Roles in Project Risk Management

    Solution provider

    - Types of TBM

    - Features on TBM

    - Technical Assistance

    - Spare Parts Support

  • Lovsuns Tunneling Canada Ltd.

    TBM Suppliers Risk Management

    - GBR and Tunnel Alignment

    - Equipment Specification and Performance

    - Equipment Delivery

    - Operation and Maintenance

    - Contract Terms

    Needed to provide the right tools for

    the Project!!!

  • Lovsuns Tunneling Canada Ltd.

    GBR and Tunnel Alignment

    Detail Geotechnical Baseline Report containing at a minimum:-

    - Quantity and Depth of Bore Hole Analysis

    - Groundwater Condition (Expected Inflow and Pressure)

    - Grain Size Distribution

    - Rock Strength and RMR

    - Boulders, Faults, Obstacles along Alignment

    - Operating and Maximum EPB Pressure

    - Presence of Hazardous Gas

    Alignment Details Containing at a minimum:-

    - Tunnel Lengths and Shaft/Portal details

    - Maximum Vertical Slope and Minimum Horizontal Radius

    - Segment Details

  • Lovsuns Tunneling Canada Ltd.

    Equipment Specification and Performance

    - Owners requirement Typically very Descriptive

    - Local Regulatory Standards and Requirement

    - Contractors Equipment Requirement and Performance

    Expectation

    - Manufacturers Past Experience and Internal Standards

    - Transportation, Assembly and Disassembly Restrictions

  • Lovsuns Tunneling Canada Ltd.

    EPB TBM Features that can assist to Mitigate Risks

    - Cuttinghead Design

    - Tool Selection

    - Airlock

    - EPB Sensors

    - Ground Conditioning

    - Probe Drilling

    - Emergency Inflatable Seal

    - Data logging

    Equipment Specification and Performance

  • Lovsuns Tunneling Canada Ltd.

    14mm thick CrC on Cuttinghead Face

    19mm thick CrC on Cuttinghead Rim

    5 No. injection ports on Cuttinghead face

    1 No. Injection ports on Cuttinghead Gauge

    Interchangeable Rippers and Disc Cutters

    Wear detection on face of Cuttinghead

    Cuttinghead opening

    32%~35%

    Center opening as 50% to

    Reduce clogging in the

    center

    Cuttinghead Design

  • Lovsuns Tunneling Canada Ltd.

    Disc Cutters

    Single tip and Twin tip type disc cutters used for mixed ground conditions containing

    boulders & hard rock.

    Different disc cutter tip spacing are used to cut the rock efficiently.

    Lovsuns Tunneling provides 12.0,13.0,15.0, 15.5 & 17 Single tip, Twin tip and

    Center cutters with replaceable rings.

    Tool Selection

  • Lovsuns Tunneling Canada Ltd.

    Tool Selection

    Rippers

    Used in Soft Ground

    Three Styles for different grounds (Clay, Weak Rock and Abrasive soil)

    Main Excavation tool for EPB

    Pressurized Oil Circuit

  • Lovsuns Tunneling Canada Ltd.

    EPB Sensors

    Additional EPB Cells

    on top of Forward Shell

    6 No. EPB Cells Inside

    Cuttinghead Chamber

    2 No. EPB Cells Inside

    Screw Conveyors

  • Lovsuns Tunneling Canada Ltd.

    GROUND CONDITIONINGWhen a ground type does not have the ideal characteristics of fluidity

    and plasticity, ground conditioning can be used to modified &

    improve its ability to transmit the confinement pressure.

  • Lovsuns Tunneling Canada Ltd.

    GROUND CONDITIONING SYSTEM

  • Lovsuns Tunneling Canada Ltd.

    Probe Drill or Polarization Ground Detection

    Technique

  • Lovsuns Tunneling Canada Ltd.

    Probe Drill or Polarization Ground Detection

    Technique

  • Lovsuns Tunneling Canada Ltd.

    Emergency Inflatable Seal

  • Lovsuns Tunneling Canada Ltd.

    TBM DATA LOGGING

    Web Edition

    Windows

    Server

    (SQL)

    Tunnel TBMSurface (Site Location)

    Tunnel Media

    LOVAT Supplied Hardware LOVAT Supplied HardwareHMI / Operators Interface

    PLC / Data Acquisition Module

    Firewall

    InterNet

    Remote (Off Site)

    Site LAN

    (Local Area Network for TBM)

    Remote (Off Site)

    Hosting of Data

    Optional End User Supplied Hardware

    Remote Client Connection(s) Remote Client Connection(s)

    Hosting of Data

    Note:

    The EtherNet within the TBM, wireless and plug in both can

    facilitate the connections of PCs/Laptops to support the hosting of

    data.

    LAN Edition

    Windows

    Server

    (SQL)

    Tunnel TBMSurface (Site Location)

    Tunnel Media

    LOVAT Supplied Hardware LOVAT Supplied HardwareHMI / Operators Interface

    PLC / Data Acquisition Module

    Remote (Off Site)

    Site LAN

    (Local Area Network for TBM)

    Remote (Off Site)

    Hosting of Data

    Optional End User Supplied Hardware

    Note:

    The EtherNet within the TBM, wireless and plug in both can

    facilitate the connections of PCs/Laptops to support the hosting of

    data.

    Generic

    Workstation

    Notes:

    1. This package can operate standalone, as delivered

    2. Connection of Client Workstations rely on the infrastructure provided by the client.

    System Parameters

    Cutterhead Speed, Torque, Direction, Hours, Flood Door Opening

    Articulation Extension, Cylinder Pressure, Total Thrust, Center of Thrust/Offset

    Propulsion Extension, Cylinder Pressure, Total Thrust, Center of Thrust/Offset

    Main Drive Main Bearing Lube Flow, Sealing Systems Flow and Pressures

    Forward Shell Chamber Earth Pressures

    Screw

    Conveyor

    Speed, Torque, Earth Pressures, Guillotine Gate

    Position

    Trailing Belt

    Conveyor

    Excavation Rate, Excavated Material Totalizer

    Ground

    Conditioning

    System Output Totals, Injection Pressures and

    Flow Rates

    Grout System Injection Pressures and Accumulated Volumes, Rate

    Environmental Methane and Toxic Gases

    Hydraulic

    Systems

    Oil Temperatures, System Pressures

    Electrical

    Systems

    Motor Current Loads, TBM Power Monitoring

    (kVA, kW, PF, Amps and Volts)

  • Lovsuns Tunneling Canada Ltd.

    Additional Features

    Other TBM Features that can help Mitigate Risks

    - Emergency Bentonite System

    - Enhanced De-watering System

    - Explosion Proof Design

    - Internal Disassembly or Bearing Replacement Design

  • Lovsuns Tunneling Canada Ltd.

    Equipment Delivery

    TBM Delivery is often on the Projects Critical Path

    Currently there are two type of Equipment Procurement Model

    - Owner Procured

    - Contractor Procured

    Delivery Risk for TBM Supplier

    - Major Component Delivery (i.e. MD Bearing, Gear boxes)

    - Workshop