Documents One Pass and Two Pass Tunnel Lining

One-pass and Two-pass Precast Segmental Linings Wern-ping (Nick) Chen Jacobs UT Austin Seminar, April 4, 2007 Applicable to: Tunnel Boring Machine (TBM) tunneling Not for:…

Documents Dulles Corridor Metrorail Project Status Update Fairfax County Transportation Advisory Commission...

Slide 1Dulles Corridor Metrorail Project Status Update Fairfax County Transportation Advisory Commission November 16, 2010 Richard Stevens Fairfax County Department of Transportation…

Documents ts04F_01_lee.ppt_1320

Content 1 ) Project Outline 2) Tunnel Building with the TBM 3) Survey Methodology a: Pre-construction Stage b: Construction Stage ~ Double Zigzag Traverse ~ Tunnel Guidance…