Library · Drawings

The MMC drawing set.

High-level summary sheets: what each part is and does, not engineering detail. 33 sheets in four sets, Rev F, 7 November 2026.

Download the full set (PDF, 34 pages, 9 MB)
MMC-DWG-001

ATS Components.

The parts of the Anchor Tension System: cutter head, latch, caisson, packers, tension tubular, lock, riser and cap.

MMC-DWG-001-01 Cutter Head — summary drawing
MMC-DWG-001-01 · Rev B

Cutter Head

The cutter head drills the bore, then stays at depth as the sacrificial anchor.

Full sheetOn Technology →
MMC-DWG-001-02 Anchor Latch — summary drawing
MMC-DWG-001-02 · Rev C

Anchor Latch

The tubular latches into the cutter head receptacle: run in, engaged, tensioned, release; plus the contingency anchor seated in an insert packer.

Full sheetOn Technology →
MMC-DWG-001-03 Caisson Ring — summary drawing
MMC-DWG-001-03 · Rev C

Caisson Ring

Precast rings with castellated faces; the lead ring bears on the cutter head.

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MMC-DWG-001-04 Expansion Packer — summary drawing
MMC-DWG-001-04 · Rev C

Expansion Packer

Two versions: segmented-ring (radial lock) and solid-ring (slips on concrete). Also centralises the tubular and locks onto it once the anchor is latched.

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MMC-DWG-001-05 Tension Tubular — summary drawing
MMC-DWG-001-05 · Rev B

Tension Tubular

One tubular from cutter head to pylon cap, in ~12 m threaded sections; inspected in place or withdrawn.

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MMC-DWG-001-06 Tension Lock — summary drawing
MMC-DWG-001-06 · Rev B

Tension Lock

Ram pulls the tubular, wedge slips set in a tapered bowl, tension locked in.

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MMC-DWG-001-07 Riser Segment — summary drawing
MMC-DWG-001-07 · Rev B

Riser Segment

Hollow tapered segments, spigot-and-socket joints with a dampening layer, stacked to one continuous taper.

Full sheetOn Technology →
MMC-DWG-001-10 Centralisers and Insert Packer — summary drawing
MMC-DWG-001-10 · Rev A

Centralisers and Insert Packer

Centraliser, anchor centraliser, and the insert packer that seats the contingency anchor.

Full sheetOn Technology →
MMC-DWG-002

Topside Models.

The six named models and how one tapered segment family follows the terrain.

MMC-DWG-002-01 MMC-VC Viaduct — summary drawing
MMC-DWG-002-01 · Rev C

MMC-VC Viaduct

Single leg, single deck: cross-section and side elevation.

Full sheetOn MMC-VC →
MMC-DWG-002-02 MMC-VB Viaduct — summary drawing
MMC-DWG-002-02 · Rev B

MMC-VB Viaduct

Two legs at the outer edges, freight beams on a 6 m pylon, maglev at 17 m.

Full sheetOn MMC-VB →
MMC-DWG-003

Construction.

How a corridor is built: foundation team ahead, topside team behind; level 1 forward, upper levels back.

MMC-DWG-003-00 Construction Sequence — summary drawing
MMC-DWG-003-00 · Rev A

Construction Sequence

Foundation team ahead, topside team behind; level 1 built forward, upper levels built back.

Full sheetOn Build →
MMC-DWG-003-01 Dual Drilling Rig, Top View — summary drawing
MMC-DWG-003-01 · Rev A

Dual Drilling Rig, Top View

Method 1: the rig on rail drills both legs of a pylon at once.

Full sheetOn Build →
MMC-DWG-003-02 Dual Drilling Rig, Side Profile — summary drawing
MMC-DWG-003-02 · Rev A

Dual Drilling Rig, Side Profile

Top drive, drill pipe and caisson rams in the derrick; finished caisson behind.

Full sheetOn Build →
MMC-DWG-003-03 Dual Drilling Rig, Rear View — summary drawing
MMC-DWG-003-03 · Rev A

Dual Drilling Rig, Rear View

Variable-height lever arms set each derrick on its own ground level.

Full sheetOn Build →
MMC-DWG-003-04 Mobile Drilling Rig — summary drawing
MMC-DWG-003-04 · Rev A

Mobile Drilling Rig

Track- or wheel-mounted rig; the foundation team works ahead of the topside team.

Full sheetOn Build →
MMC-DWG-003-05 Drilling from the Viaduct — summary drawing
MMC-DWG-003-05 · Rev A

Drilling from the Viaduct

Method 2, for rivers and difficult terrain: drill the next foundation from the viaduct already built.

Full sheetOn Build →
MMC-DWG-003-06 First Spans from the Ground — summary drawing
MMC-DWG-003-06 · Rev A

First Spans from the Ground

A ground crane builds the first spans; then the rail crane takes over on the deck.

Full sheetOn Build →
MMC-DWG-003-07 Level 1: Steps 3–5 — summary drawing
MMC-DWG-003-07 · Rev B

Level 1: Steps 3–5

Stack the pylon and cross beam; launch the longitudinal beam.

Full sheetOn Build →
MMC-DWG-003-08 Level 1: Steps 6–8 — summary drawing
MMC-DWG-003-08 · Rev B

Level 1: Steps 6–8

Set the beam; run in, latch and tension the tubular.

Full sheetOn Build →
MMC-DWG-003-09 Steps 9–10 — summary drawing
MMC-DWG-003-09 · Rev B

Steps 9–10

Level 1 runs the route; the crane comes back and withdraws one tubular at a time.

Full sheetOn Build →
MMC-DWG-003-10 Level 2: Steps 11–13 — summary drawing
MMC-DWG-003-10 · Rev B

Level 2: Steps 11–13

Stack the upper riser and maglev cross beam; lower the maglev beam.

Full sheetOn Build →
MMC-DWG-003-11 Level 2: Steps 14–15 — summary drawing
MMC-DWG-003-11 · Rev B

Level 2: Steps 14–15

Full-length tubular through both levels, latched and tensioned.

Full sheetOn Build →
MMC-DWG-004

Caisson Types.

Caisson ring types: solid or segmented build, castellated or flush faces. More types are added as they are designed.

MMC-DWG-004-01 Solid Caisson Ring — summary drawing
MMC-DWG-004-01 · Rev A

Solid Caisson Ring

One-piece ring; the solid-ring packer sets inside it and, once the anchor is latched, locks onto the tubular.

Full sheetOn Technology →
MMC-DWG-004-02 Segmented Caisson Ring — summary drawing
MMC-DWG-004-02 · Rev A

Segmented Caisson Ring

The packer drives the segments out against the bore wall: radial force becomes axial restraint.

Full sheetOn Technology →
MMC-DWG-004-03 Castellated Caisson Ring — summary drawing
MMC-DWG-004-03 · Rev B

Castellated Caisson Ring

Teeth on both faces lock ring to ring like a dog clutch, so the stack can be turned to break skin friction.

Full sheetOn Technology →
MMC-DWG-004-04 Flush Caisson Ring — summary drawing
MMC-DWG-004-04 · Rev B

Flush Caisson Ring

Flat faces located male to female, no teeth: for simple installs where the stack is not turned.

Full sheetOn Technology →
About the Drawings

Summary sheets, not construction drawings.

Each sheet shows what a part is and how it works, with only the figures needed to read it. Where a figure is indicative rather than set, the sheet says so. The engineering behind each sheet is in the memos and patents.