MTA Second Avenue Subway Launches New Exhibit: En Route: The Techniques and Technologies Used to Build the Second Avenue Subway

Published on : Saturday, May 24, 2014

MTA-RailHave you ever wondered how a complex project like building a new subway is done? Now you can find out by visiting the MTA Second Avenue Subway Community Information Center (CIC), which just unveiled its new exhibit – En Route: The Techniques and Technologies Used to Build the Second Avenue Subway. The exhibit opens to the general public today. The CIC is located at 1628 Second Avenue, between 84th and 85th Streets.

 

 
The second of the CIC’s biannual exhibits will utilize interactive and static displays to demonstrate 13 of the construction technologies used to build the Second Avenue Subway, the first major expansion of the New York City subway system in 70 years.

 

 

“For those of you who have tried to get on one of my Saturday tours of the cavern just to find that it was already fully subscribed, we’ve added a virtual tour of the underground cavern to the new exhibit,” said, MTA Capital Construction President Michael Horodniceanu. “And it really is the next best thing to being there.”
 

 
Techniques such as tunnel boring, controlled blasting, cut and cover excavation, air scrubbers, ground freezing and more are explained through photos, videos, and animations in an interactive exhibit using iPads to control the display on a wide screen TV. An entire wall of the CIC will display a cross section of the project from 63rd Street to 104th Street to illustrate the juxtaposition of the bedrock profile under the surface and the techniques used to cut through it and excavate above it.

 

 

The exhibit shows how creative the project team needed to be when they encountered an obstruction that prevented them from excavating. After trying just about every normal technique known in the industry to remove it, a large diameter pipe was driven into the slurry next to the obstruction. A diver then went into the pipe and used an underwater blow torch to cut it into pieces through holes in the pipe so the obstruction could be removed.
 

 
A virtual tour of the 86th Street cavern and tunnel is included in the new exhibit. Also part of the exhibit, the CIC will showcase two new models: a replica of the tunnel boring machine and a scale model of the 96th Street station.
 

 
The CIC is open Mondays, Wednesdays and Fridays from 10 a.m. to 6 p.m.; Tuesdays and Thursdays from noon to 8 p.m. and the second Saturday of each month from 11 a.m. to 3 p.m. Admission is free.

 

 

Source:- MTA

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