Los Angeles Metro is constructing a light rail corridor beneath Downtown Los Angeles - The Regional Connector Transit Corridor (RCTC). To provide operational flexibility, RCTC required a track crossover adjacent to one of the stations. Right of way constraints required the crossover be constructed at relatively shallow depth using Sequential Excavation Methods (SEM), resulting in what is believed to be the largest mined cross section in Los Angeles.
Challenges faced for the SEM cavern design and construction included strict limits for tunnelling induced displacements in surrounding structures and high seismic design loads with 2,500 year return periods. This presentation describes the design approach of the SEM cavern, with an emphasis on the seismic analysis, as well as the actual conditions faced during construction.
In the heart of Belfast is a testament to time, resilience, and community spirit—Templemore Baths, the only surviving Victorian baths of its kind on the island of Ireland. Join us on a captivating journey through its transformation—a triumph of restoration, and an investment in the community's future.
This event is primarily for those living and working in Republic of Ireland who are planning on achieving Incorporated or Chartered Membership with the ICE.