Ring Steel Handling Attachment
Kraemer/Obayashi
Design of drive system for installing tunnel steel sets
Mesh Manipulator Attachment
Dragados/Judlau
Quick release attachment carries, rotates, pivots and lifts mesh panels for installation on ribs or roof
Steel Set Handler Attachment
Barnard
Design and build attachment for installation of custom horseshoe tunnel ring sets
Lattice Girder Erector Attachment
Guy Atkinson Construction
Design of steel set handler for lattice girder erection
Cross Passage Tunnel Liner Bracing Installation System
Granite/Tralor
Detailed design of system for transporting and installing cross passage tunnel liner bracing
Fireproofing Panel Installation System
Bouygues
Working with DSI Underground and Rolling Plains to propose fireproofing installation system
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