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The power of connections in the UCA
by Erika Moonin, 2023- 2024 UCA Chair The world is changing quickly with new innovations and technology. No doubt, these…
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Environmental Product Declarations —What they mean for the tunneling industry
Environmental Product Declarations can help measure the use of embodied and operational carbon used in the construction of tunnels such…
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Gas extraction and in situ oxidation for TBM tunneling of the Purple Line Extension, Section 1, Los Angeles
Richard McLane and James Corcoran, members UCA, are project manager and project engineer, Traylor Bros., Inc.; Matt Neuner is senior…
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September 2023 Tunnel Demand Forecast
... To view the entire article you must be a member of UCA. - Coming Soon - We are currently…
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New UCA executive committee members begin terms
Erika Moonin was named UCA Chair during the 2023 Rapid Excavation & Tunneling Conference (RETC) in Boston, MA June 11-14.…
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Excavation and support of cross passages on Westside 1
Jeff Brandt, Kerwin Hirro, Peter Dietrich, Norbert Fuegenschuh, Mike Cole and Joseph DeMello The Los Angeles County Metropolitan Transportation Authority’s…
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Carbon footprint reduction in transit tunnels
Cement and steel account for an estimated 80 percent of CO2 emissions on tunneling projects. Credit: Shutterstock.
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Tunnel Demand Forecast – June 2023
... To view the entire article you must be a member of UCA. - Coming Soon - We are currently…
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Material-handling innovations and challenges
By William Gleason, Editor When a major tunneling project commences in an urban area there is often a great deal…
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Wireless optical displacement sensor for convergence and divergence monitoring
FIG. 1 Scenarios of convergence (Erlandsson, 2020). The automation of monitoring in general appears undeniably tempting right up to the…
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