WSP Limited
WSP is a leading multi-disciplinary professional services consulting business, providing engineering and environmental services from strategy advisory and planning through to design and delivery.
- Date
- 19 September 2024
- Time
This event has now ended
Overview
Although Los Angles had an extensive historic rail transit system through the 1960s, the current LA Metro urban rail transit system that serves Los Angeles County, California opened in 1990 and following incremental expansion now comprises four light rail and two heavy rail transit lines serving over 100 stations and some 35 km constructed in tunnels. Currently Metro is completing the construction of 15 km of tunnels and 7 underground stations for the Westside Purple (D) Line extension on the Westside of Los Angeles.
The ongoing program of countywide transportation improvements also includes more tunnels and underground stations The tunnelling challenges include construction in a dense urban environment, existing underground infrastructure, earthquakes, active faults, oil wells, methane and hydrogen sulphide gases in the ground.
The presenters will discuss these challenges over time and how engineering strategies and details enabled the safe efficient construction and then operation of these underground works.
Following the lecture, there will be a networking session with food and drinks at ICE Kendal's Cafe, sponsored by WSP, Normet and Herrenknecht AG.
Normet UK Ltd
Normet is growing and innovative technology company. We define the future of underground operations in mining, tunnelling, and civil engineering projects, helping our partners increase safety, sustainability, and productivity throughout the lifecycle of their projects.
Herrenknecht AG
As the leading premium supplier of comprehensive technical solutions in mechanized tunnelling, Herrenknecht is the first port of call for underground infrastructure projects around the world. For all diameters, in any geology and in all application areas – railway, metro, road, utility (supply and disposal), pipelines, hydropower, mining and exploration.
Organised by
The British Tunnelling Society
The BTS is a vibrant group of tunnelling professionals which spreads knowledge amongst members and the tunnelling industry.
Speakers
Matthew Crow
Los Angeles Metropolitan Transportation Authority, CA, USA
deputy executive officer
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Matthew Crow
For the last decade at LA Metro, Matthew has been involved with development and implementation of underground rail transit projects, including planning, engineering and project management, recently he was Deputy Project Manager for Section 3 of the Purple Line Extension.
Matthew started his tunnelling career in the UK with Howard Humphreys under Martin Knights and Maurice Gooderham working on the planning design and construction of projects for natural gas, sewers, highways, electricity cables and rail transit; notable projects being the River Tees Tunnel, Millenium Cable Tunnel, and Cromer Outfall Tunnel.
At the British Tunnelling Society 25 years ago, he explained the pre-vaulting technique used on the Ramsgate Road Tunnel. He moved to the USA with Brown and Root performing construction management of stormwater and sewer tunnels, including the ECIS Mega Sewer Tunnel in Los Angeles and the Waller Creek Stormwater Tunnel in Austin, TX.
He is active in the profession serving on the Executive Committee of the Underground Construction Association and the Advisory Board to the Dean of Engineering at Cal State University, Los Angeles.
Amanda Elioff
WSP, USA
sr. vice president, national practice lead - tunnels
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Amanda Elioff
Amanda Elioff’s background is in planning, design development, and delivery, for light and heavy rail subway systems. She has served as deputy project director, project manager, and engineering manager for multiple phases of Los Angeles Metro’s system development: Her responsibilities have included conducting geotechnical investigations and feasibility studies; developing specifications; preparation of geotechnical baseline reports; and providing design support during construction.
Amanda’s design and construction experience also includes water and wastewater tunnels and an underground physics research facility. She has worked on design criteria for underground structures, and design/testing of mitigation measures for construction in gassy underground conditions. Currently, she is WSP’s manager for section 1 of the Purple Line Extension project under construction in Los Angeles, and engineering manager for San Francisco Bay Area’s Link21 Planning and Engineering Team (ARUP/WSP JV), studying a second Bay Tunnel Crossing and Megaregional transportation.
Amanda has been active in professional associations: American Society of Civil Engineers (ASCE- Past President, LA Branch), director - American Underground Construction Association, and VP, International Tunneling Association. Recently, she was a member of the committee preparing the ASCE publication Geotechnical Baseline Reports: Suggested Guidelines. (3rd edition 2022). This manual of practice explains the role of GBRs in allocating and managing risks associated with subsurface construction. Amanda holds MS and BS degrees from the University of Texas, Austin
