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Upcoming Tunneling Projects – Tunnel

2/10/2016

Upcoming Tunneling Projects

CALIFORNIA
Laguna Beach
Tunnel   Stabilization   and   Sewer   Pipeline   Replacement
Approved by the South Coast Water District Board of Directors in 2010 and the City of Laguna Beach in late 2013, the Tunnel Stabilization & Sewer Pipeline Replacement Project (Tunnel Project) is a 100-year solution to protect the environment, local economies and neighboring communities. The project comprises two key components:

  • Tunnel Stabilization: The District will enlarge the size of the tunnel from an average of 6 to 9 ft. This will ensure safer working conditions and greater access for future pipeline maintenance and repair. Permanent shotcrete lining and steel supports will be installed at several locations where required, replacing rotten timber supports and removal of loose rock that currently exist.
  • Pipeline Replacement: The District will install a new 24-in. pipeline throughout the tunnel. The current pipeline – also 24 in. in diameter – will be encased in concrete, but preserved for redundancy and emergency use.

The cost to repair the tunnel is estimated at approximately $90 million and will be funded through low-interest state loans, grants and the District’s general fund. Shortlisted tunnel contractors announcement was anticipated for 2014-2015 with request for bids expected in 2015 and NTP in 2015-2016.

Los Angeles
The   North East   Interceptor   Sewer   (NEIS)   Phase   2A
The North East Interceptor Sewer (NEIS) Phase 2A project is currently the northern extension of the NEIS Phase 1 project. The project will construct approximately 3.03 miles of 8-ft diameter sewer in tunnel and associated structures. The sewer will be constructed from the Division St. Shaft site, near the intersection of San Fernando Road and Cazador Street and terminate at the northern overflow parking lot for the Pony and Train […]

Geotechnical Engineering | Civil and Environmental Engineering at Illinois

 

Alumni of CEE’s Geotechnical Engineering program have made significant contributions to major projects like subway systems in the nation’s largest cities, the Hoover Dam and the World Trade Center. Today, geotechnical engineering faculty members have expertise in earthquake engineering, soil mechanics behavior, foundation engineering, rock mechanics and tunneling, and advanced numerical modeling techniques.

Research interests of the Geotechnical Engineering faculty include:

  • Deep excavations
  • Earthquake engineering
  • Numerical modeling
  • Static and dynamic Soil-structure interaction.
  • Engineering properties, construction problems, and ground modification technology in soft clays and silts, stiff clays and soft rocks, and granular materials
  • Soil-structure interaction
  • Reliability-based design
  • Mechanically stabilized earth and earth support systems
  • Ground improvement methods and their effect on structures
  • Soil liquefaction during earthquakes
  • The static and seismic stability of natural and excavated slopes

 

Source: Geotechnical Engineering | Civil and Environmental Engineering at Illinois

Geotechnical Engineering Illinois