TBM Specifications

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TBM specs

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  • 24 November 2013

    Mr. Alexandre Jonard

    Package Manager, Riyadh Metro Transit Consultants (RMTC)

    Smart Building, 2nd

    Floor

    Suliman Al Hamdan Street, Olaya District

    P.O. Box 1174

    Riyadh, 11431 Kingdom of Saudi Arabia

    Subject: Riyadh Metro Project, Package 1

    Tunnel Boring Machines (TBM) Specification and

    References: N/A

    Dear Mr. Jonard,

    We have initiated the procurement process of four TBMs in parallel to finalizing decision on the

    tunneling execution strategy. We enclose for your information the TBM technical specification

    (as Attachment 1) and the TBM recommended

    We will keep RMTC informed as we progress the tendering cycle.

    Respectfully,

    Dr. Amjad Bangash

    Authorized BACS Consortium Representative

    Reply Requested: No

    Attachments: 1) TBM technical specification (

    2) TBM recommended bidders list for TBMs (1 page)

    Our Ref: BACS-Letter

    , Riyadh Metro Transit Consultants (RMTC)

    Olaya District

    Kingdom of Saudi Arabia

    Riyadh Metro Project, Package 1

    Tunnel Boring Machines (TBM) Specification and Recommended Bidders List

    the procurement process of four TBMs in parallel to finalizing decision on the

    tunneling execution strategy. We enclose for your information the TBM technical specification

    recommended bidders list (as Attachment 2).

    TC informed as we progress the tendering cycle.

    Authorized BACS Consortium Representative

    TBM technical specification (44 pages)

    ecommended bidders list for TBMs (1 page)

    Receipt Acknowledged: ______________________

    Letter-000017

    Bidders List

    the procurement process of four TBMs in parallel to finalizing decision on the

    tunneling execution strategy. We enclose for your information the TBM technical specification

    Receipt Acknowledged: ______________________

  • ____________________________________________________________________________________________ Rev 0 dtd 12Nov13 Purchase Order No.: 0304-CWJV-000-ETM-VR-00001

    RIYADH METRO PROJECT PACKAGE 1

    LINE 1 / BLUE LINE (OLAYA-KING FAISAL-BATHA CORRIDOR)

    LINE 2 / GREEN LINE (KING ABDULLAH ROAD)

    PURCHASE ORDER NO. 0304-CWJV-000-ETM-VR-00001 Rev.: 0

    Dated: 12 November 2013

    TUNNEL BORING MACHINES TECHNICAL SPECIFICATION

  • RIYADH METRO PROJECT

    TUNNEL BORING MACHINES TECHNICAL SPECIFICATION

    Purchase Order Number: 0304-CWJV-000-ETM-VR-00001 Rev.: 0

    Rev 0 dtd 12Nov13 Page 1/43

    1 INTRODUCTION ............................................................................................................ 4

    1.1 General ................................................................................................................... 4

    1.2 Scope of Supply ...................................................................................................... 5

    2 DESIGN, MANUFACTURE AND SITE SUPPORT ......................................................... 5

    2.1 Design and Manufacture ......................................................................................... 5

    2.2 Health and Safety .................................................................................................... 6

    2.3 Energy Efficiency .................................................................................................... 6

    2.4 Site Support ............................................................................................................ 7

    3 TBM DESIGN PARAMETERS ........................................................................................ 7

    3.1 General Description ................................................................................................. 7

    3.2 Ground Settlement .................................................................................................. 8

    3.3 Materials Supply and Spoil Removal ....................................................................... 8

    3.4 Design Methods and Checking ................................................................................ 8

    3.5 The TBM Shield ...................................................................................................... 9

    3.6 The TBM Cutter Head ............................................................................................. 9

    3.7 TBM Launching ....................................................................................................... 9

    3.8 Passage through Intermediate Stations ................................................................. 10

    3.9 TBM Removal ....................................................................................................... 10

    4 SPECIFICATION OF THE TBMs .................................................................................. 10

    4.1 General Requirements .......................................................................................... 10

    4.2 Shield Configuration .............................................................................................. 10

    4.2.1 Front Shield .................................................................................................... 11

    4.2.2 Main Shield .................................................................................................... 11

    4.2.3 Tail Shield ...................................................................................................... 12

    4.3 Cutterhead Main Bearing and Sealing System ...................................................... 13

    4.3.1 Cutterhead ..................................................................................................... 13

    4.3.2 Main Bearing .................................................................................................. 14

    4.3.3 Drive Train ..................................................................................................... 14

    4.3.4 Main Bearing Sealing System ........................................................................ 15

    4.4 Removal of Excavated Material ............................................................................. 15

    4.4.1 Face Conveyor ............................................................................................... 15

    4.4.2 TBM Transfer Belt Conveyor .......................................................................... 15

    4.5 Segment Erector ................................................................................................... 16

    4.6 Erector Bridge ....................................................................................................... 18

    4.7 Segment Magazine ............................................................................................... 18

    4.8 TBM Operation ...................................................................................................... 19

    4.8.1 TBM (sub-surface) Control Cabin ................................................................... 19

  • RIYADH METRO PROJECT

    TUNNEL BORING MACHINES TECHNICAL SPECIFICATION

    Purchase Order Number: 0304-CWJV-000-ETM-VR-00001 Rev.: 0

    Rev 0 dtd 12Nov13 Page 2/43

    4.8.2 TBM (Surface) Control Room ......................................................................... 19

    4.8.3 Conveyor operation ........................................................................................ 19

    4.9 Belt weighing, conveyor and weigher parameters. ................................................ 19

    4.9.1 Requirements for accurate and repeatable belt weighing. .............................. 19

    4.9.2 Conveyor Structure ........................................................................................ 20

    4.9.3 Conveyor Belt................................................................................................. 20

    4.9.4 Idlers .............................................................................................................. 21

    4.9.5 Weigh Quality Idler Roll Specification ............................................................. 21

    4.9.6 Weigh Quality Idler Frame Specification ......................................................... 21

    4.9.7 Belt Tension control Gravity Take-Up Unit. .................................................. 21

    4.9.8 Weight processing electronics ........................................................................ 22

    4.9.9 Tachometers / Odometers .............................................................................. 22

    4.9.10 Belt and Drum Cleanliness ............................................................................. 22

    4.9.11 Other Considerations ..................................................................................... 22

    4.9.12 Material Testing .............................................................................................. 22

    5 CONTROL AND MONITORING ................................................................................... 22

    5.1 Cutter Head ........................................................................................................... 25

    5.2 Front Shield ........................................................................................................... 25

    5.3 Main Shield ........................................................................................................... 25

    5.4 Rear Shield ........................................................................................................... 25

    5.5 B