TECHNICAL | LIFTING/CONVEYORS


Right:


Overview of the extensive Robbins conveyor system for the DigIndy tunnels below Indianapolis, IN ALL IMAGES: ROBBINS


Centre:


Crew members splice a new roll of conveyor belt into the system at the DigIndy tunnels in Indianapolis, IN


Bottom:


A Robbins vertical conveyor belt transfers mixed ground at Mexico City’s Emisor Oriente tunnels


ROBBINS – CONVEYORS, AND OFTA


A challenge solved in mucking out from tunnel works – and still quite a sight to see – is a conveyor carrying the spoil vertically up and out of a shaft. It is also a significant feat to engineer TBM systems


such that the parts are lifted and first come together, fully, through its Onsite First Time Assembly (OFTA) system, when preparing for earnest operation on a project site. One of the projects where Robbins supplied an


extensive conveyor system was the DigIndy tunnels below Indianapolis, IN, in the US. Another use of the vertical conveyor belt transfer system was moving out mixed ground during tunneling works at Mexico City’s Emisor Oriente tunnel project.


16 | Fall 2023


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