FROM THE FIELD

Where engineering
meets execution.

Selected moments from deep shafts, machine breakthroughs and technically demanding underground works.

Microtunnelling machine inside a deep launch shaft — 01 / SHAFT & LAUNCHDeep shaft operations

Microtunnel breakthrough under groundwater conditions — 02 / GROUNDWATERControlled breakthrough

Cutterhead breaking through into a reception shaft — 03 / RECEPTIONFinal breakthrough

Cutterhead at breakthrough with groundwater flow — 04 / FACE CONTROLHigh-groundwater execution

4.2 metre outer diameter intermediate jacking system — 05 / JACKING FORCE4.2 m OD intermediate jacking system

Microtunnel breakthrough inside a deep shaft — 06 / DELIVERYDeep shaft breakthrough

AVN microtunnelling machine lifted by tandem cranes during a night operation — 07 / HEAVY LIFTINGAVN machine lifting

Ventilation and service lines installed inside a completed microtunnel — 08 / TUNNEL SERVICESInside the tunnel

Large pipe being inserted into the launch structure — 09 / PIPE JACKINGPipe insertion

Interior grouting operation inside a large pipeline — 10 / GROUTINGInterior grout

Microtunnelling equipment lowered into a deep launch shaft — 11 / SHAFT LOGISTICSShaft equipment lowering

Deep circular shaft operation beside a live urban road corridor — 12 / URBAN DELIVERYUrban shaft operations

Twin pipe jacking drives prepared inside a launch excavation — 13 / LAUNCH WORKSTwin-drive preparation

Large-diameter pipe jacking system and pipe segment inside a launch pit — 14 / PIPE JACKINGLarge-diameter launch

Tunnel boring machine cutterhead breaking through hard rock — 15 / HARD GROUNDRock breakthrough

Large pipeline installation through a rock excavation and shaft structure — 16 / ROCK EXCAVATIONRock shaft connection

FIELD-LED ENGINEERING

Technical decisions become meaningful only when they can be executed safely, accurately and consistently underground.