See you in Dallas! We’ll be at this year’s Rapid Excavation & Tunneling Conference (RETC), taking place June 8-11, 2025. Explore our official RETC page and learn more about AECOM’s tunneling capabilities. Come see our experts who will discuss the latest innovations in the tunneling world.
Get to know our presenters and authors at this year’s conference.
Gregory Reichert, Co-author, Oakland, California, U.S.
Session: Grouting and Ground Modification
“Decommissioning Inlet/Outlet Pipe Underneath an Earthfill Dam by High Pressure Tremie Grouting Method”
Co-authors: Kenji Yamauchi, Yuichi Kammoto (presenter) and Masataka Shinjo (Obayashi Corp.); Shawna Von Stockhausen (Mott MacDonald); Isidro Rivera (City of Santa Cruz) and Gary Taylor and Dane Taylor (Keller-North America),
June 9, 2025 at 9:30 a.m. CT, Lone Star C4
Gerardo Agustin Pittaro, Presenter, Panama City, Panama
Session: Grouting and Ground Modfication
“Deep Cement Mixing – Experience from Thomson East Coast Line in Singapore”
Jun 9, 2025 at 10:30 a.m. CT, Lone Star C4
Kevin Huynh, Presenter, Oakland, California, U.S.
Session: Difficult Ground
“Anderson Dam Tunnel Project Excavating through Faults and Variable Ground Conditions”
Co-authors: Ryan McCarter (Valley Water); and Brian Harris and Alex Folchi (Drill Tech Drilling & Shoring, Inc.) and Theodore Feldsher (AECOM),
June 9, 2025 at 1:30 p.m. CT, Lone Star C2-C3
Verya Nasri, Presenter, New York, New York, U.S.
Session: SEM/NATM, Large Span Tunnels and Caverns
“Application of New Montreal Tunneling Method to Current Mega Projects”
June 10, 2025 at 9:10 a.m. CT, Lone Star A2-A3
Mahmoud Sepehrmanesh, Presenter, New York, New York, U.S.
Session: Design I
“Initial Support Design of SEM Stations in Downtown Toronto”
Co-authors: Iqbal Hassan (Metrolinx) and Verya Nasri (AECOM)
June 10, 2025 at 3:30 p.m. CT, Lone Star C2-C3
Michael Mains, Presenter, Burnaby, British Columbia, Canada
Session: International Projects
“Seismic Design of Large Diameter TBM Tunnel Under High Seismic Environment”
Co-authors: Sergio Sanchez, Carlos Alvarez, Eduardo Manzano and Carlos Mora (AECOM)
June 10, 2025 at 3:30 p.m. CT, Lone Star A4
Theodora Vovou, Co-Chair, Los Angeles, California, U.S.
Session: Design II
Co-chair: Zach Lescowitch (Traylor Bros Inc.)
June 11, 2025 at 8:30 a.m. CT, Lone Star C2-C3
Sergio Sanchez, Presenter, Madrid, Spain
Session: Design II
“Analysis on the Efficiency of Cut-off Barriers to Mitigate Risk in Urban Tunnelling”
Co-authors: Pedro Santiago Garcia Boix and Laura Costa (AECOM)
June 11, 2025 at 8:50 a.m. CT, Lone Star C2-C3
Irwan Halim Co-author, Chelmsford, Massachusetts
Session: Design II
“Hudson River Tunnels – Conquering Gotham Again”
Co-authors: Lily Yin (Presenter), Jingyi Tang and David Smith (WSP) and Omar Baltaji (AECOM)
June 11, 2025 at 9:30 a.m. CT, Lone Star C2-C3