Tunnels: Difference between revisions

Revision as of 03:17, 11 September 2022

Wikipedia on large tunnel-boring machines - [1]
Virgin is also into alt transport with underground Hyperloops [2]
Cost - Boring Company is predicting $5M/mile [3] and a mile per week boring distance. [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html
There is huge red tape for building tunnels, and costs are $100M-$1B per mile [4]. The Boring Company was supposed to do $10M/mile
Boring machines - called moles - cost a million. They work like this [5]
In soft rock Youtube - digging for gold [6]
Rock bolts are used to stabilize a tunnel - [7]

@@ Line 1: / Line 1: @@
 *Wikipedia on large tunnel-boring machines - [https://en.wikipedia.org/wiki/Tunnel_boring_machine]
+*Virgin is also into alt transport with underground Hyperloops [https://www.costar.com/article/1623931237/virgin-hyperloop-expands-downtown-los-angeles-headquarters-with-relocation]
 *Cost - Boring Company is predicting $5M/mile [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html] and a mile per week boring distance. [https://www.nextbigfuture.com/2021/08/boring-tunneling-cost-predicted-to-be-4-5-million-per-mile.html
 *There is huge red tape for building tunnels, and costs are $100M-$1B per mile [https://www.nbcnews.com/tech/tech-news/urban-tunnels-musk-s-boring-co-draw-industry-skepticism-n1269677]. The Boring Company was supposed to do $10M/mile