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Old 06-07-2018, 11:17 PM   #1054
Joel N. Weber II
Senior Member
 
Join Date: Aug 2015
Posts: 562
Re: North-South Rail Link

This is a Boring video with some thoughts on things that might reduce tunneling cost, like using the dirt to make bricks instead of treating it as a worthless waste product, and building concrete reinforcing sections on site. 15:07 has a video clip of a mining train powered by a pair of Tesla Model 3 motors and batteries.

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