Robbins Crossover TBM “Rosie” flexes her Muscle
Oct 10, 2018
Massive XRE Machine breaks through at Akron OCIT.
The machine—dubbed “Rosie” in honor of Rosie the Riveter, an icon representing American women who worked in factories and shipyards during World War II—overcame tough ground conditions during the bore.
“One of the most challenging aspects of this job was that we launched right into the most difficult part. We had 60 m (200 ft) of soft ground, a very short reach, and then from there we went right into a mixed face for 180 m (600 ft),” said David Chastka, Project Manager for Kenny Construction, a joint venture contractor on the project with Obayashi. “It took everybody we had in the industry, everybody from Robbins, to fight through that first 240 m (800 ft).”
The TBM was designed for the project’s geology, which transitioned from soil to partial face shale to full face shale rock. The Crossover XRE included features of both EPB and Hard Rock Single Shield TBM types, with a versatile cutterhead that could be configured for hard rock or soft ground conditions. While in soft ground and mixed face conditions the machine operated in closed mode, but once it hit solid rock crews switched excavation to open mode.
“The machine had the power to get to the other side and made advance rates we never thought we were going to get. It was very successful in hard rock,” said Chastka. Advance rates once in full-face shale rock reached a high of 34 m (111 ft) in one day (two 10-hour shifts). Muck removal was achieved using a Robbins continuous conveyor, and conveyor availability remained high throughout the project.
“I am most proud of the team that I have had the pleasure of being a part of,” said Don Smida, Robbins Field Service Technician. The overall scope of a project of this scale is immense, and the amount of daily cooperation & hard work that has been asked of The Robbins Company, the local unions, city staff, and Kenny-Obayashi is extremely important in reaching our common goals. I think we should all be proud of our teamwork going forward from a successful completion of the tunnel and into a successful disassembly of Rosie.”
Now that tunneling is complete, the machine will be disassembled and removed from its retrieval shaft this autumn. “The Ohio Canal Interceptor Tunnel is the largest public improvement project in our City’s history and a significant investment in our environment and infrastructure that will benefit Akron residents and businesses for generations to come,” said the City of Akron’s Mayor Daniel Horrigan.
“Projects of this kind are inherently dangerous, and I am incredibly proud that the tunneling portion was completed without any major injuries, thanks to a dedicated team of professionals. And although Robbins is an international company with worldwide impact, we were pleased to be able to work with a local Northeast Ohio firm on this significant project.”
The OCIT Project for the City of Akron, Ohio, USA consists of the construction of a conveyance and storage tunnel system to control Combined Sewer Overflows (CSOs) for several regulators in the downtown Akron area. The EPA-mandated project includes the 1.89 km (1.17 mi) conveyance and storage tunnel, as well as drop shafts, diversion structures, consolidation sewers, and related structures.
More News and Articles
Nov 29, 2023
Researchers at MIT (Massachusetts Institute of Technology) have made a groundbreaking discovery that could change our understanding of evaporation, a ubiquitous process in our environment. They found that under certain conditions, light can directly cause evaporation without the need for …
Nov 27, 2023
NEW UNITRACC Construction Site Documentation: "Rehabilitation of a DN 400 Concrete Gravity Sewer with a SAERTEX-LINER® MULTI over a Length of 69 m" (CIPP)
New construction site documentation in the renovation section of the e-learning platform: Rehabilitation of a DN 400 concrete gravity sewer with CIPP lining using SAERTEX-LINER® MULTI, type S+ Standard. The objective of this rehabilitation measure was to enhance the structural …
Nov 27, 2023
Digitising water management
Nov 24, 2023
Budleigh Salterton is a popular and picturesque seaside town situated within the East Devon Area of Outstanding Natural Beauty. Located at the start of the stunning Jurassic Coast; a UNESCO World Heritage Site recognised for its outstanding rocks, fossils and …
Nov 22, 2023
Having been in business for 86 years, Interflow has proven it knows a thing or two about longevity. Right now, that requires an all-encompassing sustainability strategy, as Richard McCarthy, Interflow’s executive general manager southern region, explained.
Nov 20, 2023
An interview with Managing Director Robert Ristow
Nov 17, 2023
Tractebel and Aurecon forge strategic partnership to revolutionize dam projects in Queensland, Australia
Tractebel and Aurecon form a strategic alliance to revolutionize dam projects in Queensland, Australia, combining their global expertise and local knowledge to meet the rising demand for dam upgrades.
Nov 15, 2023
SA Water will use horizontal directional drilling (HDD) to assist in installing a section of pipe underneath the Melbourne to Adelaide rail corridor.
Nov 13, 2023
Saudi Arabia’s visionary city, Neom, is leading the way in sustainable water solutions with the construction of a desalination plant powered entirely by renewable energy.
Nov 10, 2023
Adept Civil Group has successfully delivered on a sewer reticulation extension project at the Charlemont Rise estate.
Nov 09, 2023
NEW LAUNCH: UNITRACC Module "Details on the Installation of Lining with UV Cured-in-Place Pipes" (Renovation: CIPP)
Introducing the new e-learning module for the course "Renovation: Lining with Cured-In-Place Pipes"! This module focuses on the installation of UV CIPP using the high-quality SAERTEX-LINER® specifically designed for gravity pipes and sewers - with contributions by renowned manufacturer SAERTEX …
Nov 08, 2023
Extreme rainfall, flooded streets, destroyed houses and infrastructure, people fighting for their lives amidst the floods. 2021 was also marked by such tragic events. It´s time to ask how flood disasters happen, and what can be done about them.