Innovative Underwater Construction: Meet BURT
In the bustling Detroit area, a groundbreaking project has utilized technology and ingenuity to replace aging tunnel liners without the cumbersome need for dewatering. This feat was enabled by the innovative diver-operated vehicle, BURT, an acronym for Ballard’s Underwater Ring Transporter. This specialized, electric-over-hydraulic transporter showcases how modern engineering can resolve age-old infrastructural issues without disrupting essential water services.
A Deep Dive into BURT's Operation
BURT's journey began with its development at Oregon State University's O.H. Hinsdale Wave Research Laboratory. Designed to navigate the depths of 10 to 12-foot diameter tunnels built in the 1930s and 1950s, BURT is equipped with four independently-driven hydraulic wheels, allowing it to maneuver in the challenging underwater environment.
What differentiates BURT from traditional tunneling equipment is its capability to operate under 95 feet of water without needing to drain the tunnels first. This not only saved considerable time—reducing the project timeline significantly—but also avoided potential disruptions to the surrounding water supply. The GRWA (Great Lakes Water Authority) benefitted from diverting plans that could have turned the project into a piecemeal operation.
Cost Savings and Efficiency Gains
A progressive design-build approach replaced the initial design-bid-build strategy, slashing costs associated with dewatering and diversions. Spanning three years and approximately $90 million, the project has not just revitalized vital infrastructure but done so with minimal environmental impact, proving that modern technology can align effectively with fiscal and ecological responsibilities.
Ensuring Worker Safety and Efficiency
One of the most striking aspects of BURT's design is its focus on diver safety. With water temperatures lingering around 33°F in winter, crew members faced the dual challenge of performing intricate underwater tasks while contending with severe cold. To mitigate these issues, heating tents were erected over access shafts, and crucial air supplies were integrated into BURT's engineering, allowing divers additional time to make necessary adjustments.
Record-Breaking Achievements in Tunnel Repair
During the operational phases, BURT showcased its capabilities by installing substantial sections of liner plates, with some days seeing the successful placement of four rings in just an eight-hour shift. All in, around 13,000 feet of tunnel liner was restored—an impressive feat in the world of underwater construction.
Future Innovations in Water Infrastructure
As more cities grapple with aging infrastructure, BURT's success paves the way for future innovation in the realm of underwater and tunnel construction. With water mains across the U.S. needing similar interventions, BURT represents a flexible, efficient solution for the complex challenges cities face.
The meticulous engineering and development processes combined with a clear focus on performance and safety make projects like this the epitome of what modern construction should be. The question now for industry professionals and stakeholders is: how can we leverage this success further to address the myriad challenges still posed by aging infrastructure?
Add Row
Add
Write A Comment