3 ms·
On the surface, what about the long term effects of boring giant holes and tunnels through underground?
by ajeet_dhaliwal 9y ago
On the surface, what about the long term effects of boring giant holes and tunnels through underground?
- jopsen 9y agoProbably most of it is rock, and the tunnel is probably sounded by concrete. Regardless, I have no doubt the Swedes did an analysis and weighted the pros and cons.
- jimstr 9y agoThere was a previous Swedish tunnel project that had a number of incidents, among others groundwater pollution caused by a new sealing compound that contained acrylamid https://en.wikipedia.org/wiki/Hallands%C3%A5s_Tunnel https://en.wikipedia.org/wiki/Hallands%C3%A5s_Tunnel