CALTRAIN BRISBANE TUNNEL REHABILITATION PROJECT

Project Description

As part of Caltrain's ongoing, system-wide electrification program, Tunnel #4 was analyzed and rehabilitated along the Caltrain corridor. Due to poor drainage and settlement issues, Tunnel #4 was suffering from extensive tunnel floor slab failure.

Scope of Services

RSE's team provided its expertise and experience to investigate existing conditions and analyze and identify the underlying settlement issues. Methods used by RSE to accomplish this determination included:

  • Surveying

  • Structural analysis

  • Geotechnical analysis

  • Development of alternative/cross section options

  • Identification of drainage improvement options

CLIENT
Peninsula Corridor Joint Powers Board (PCJPB) – Caltrain
LOCATION
Brisbane, California
PROJECT HIGHLIGHTS
  • Geotechnical Baseline Report
  • Structural Analysis
SERVICES
Surveying
Geotechnical Support
Engineering

As a result of RSE's work, a number of practical, cost-effective alternatives to mitigate the settlement issues where identified; including, various tunnel slab options, geotechnical improvements, and drainage improvements with a potential need to install several new pump stations.