Author Topic: Elon The Boring Company  (Read 102061 times)

Online docmordrid

  • Senior Member
  • *****
  • Posts: 4237
  • Michigan
  • Liked: 1415
  • Likes Given: 1
Re: Elon The Boring Company
« Reply #600 on: 10/05/2017 07:14 AM »
OTOH, Roadheaders mass about 12-100 tonnes and can excavate shaped to suit cavities, tunnels, chambers  etc..
DM

Offline sanman

  • Senior Member
  • *****
  • Posts: 3720
  • Liked: 459
  • Likes Given: 3
Re: Elon The Boring Company
« Reply #601 on: 10/05/2017 07:38 AM »
OTOH, Roadheaders mass about 12-100 tonnes and can excavate shaped to suit cavities, tunnels, chambers  etc..

But surely their parts suffer enough wear and tear that they need to be replaced often enough. Would it be worth the trouble to use some more energetic technology, involving superheated gas, via lasers, microwaves, electric discharge, etc? Even if it's less energy-efficient, you've still got a lot of energy on the Moon via sunlight, to offset that.

Offline guckyfan

  • Senior Member
  • *****
  • Posts: 6307
  • Germany
  • Liked: 1576
  • Likes Given: 1378
Re: Elon The Boring Company
« Reply #602 on: 10/05/2017 07:42 AM »
OTOH, Roadheaders mass about 12-100 tonnes and can excavate shaped to suit cavities, tunnels, chambers  etc..

I just recently watched a "documentation" on the impending return of Nibiru. The US government has prepared for the event by creating an underground facility. I don't know how they filmed that scene. It looked very real, not CGI. Vast open spaces and trucks driving around in them with very wide base rock pillars to keep it stable. Road headers would be involved in building something like this.

Unfortunately I don't remember the name. Otherwise I would do some screen shots. Very impressive. A facility to live in without claustrophobia.

Offline sanman

  • Senior Member
  • *****
  • Posts: 3720
  • Liked: 459
  • Likes Given: 3
Re: Elon The Boring Company
« Reply #603 on: 10/05/2017 08:16 AM »
This article compares the following technologies:

http://technology.infomine.com/reviews/tunneling/welcome.asp?view=full

Quote
There are five different methods of tunneling. These are:
-Pipe Jacking/Shield Machines
-Road Headers
-Hammer Tunneling Splitters
-TBMs
-Drill and Blast



(In the graph, UCS (horizontal axis) means Unconfined Compressive Strength)



Online Tulse

  • Member
  • Posts: 27
  • Liked: 16
  • Likes Given: 0
Re: Elon The Boring Company
« Reply #604 on: 10/05/2017 01:31 PM »
Would it be worth the trouble to use some more energetic technology, involving superheated gas, via lasers, microwaves, electric discharge, etc? Even if it's less energy-efficient, you've still got a lot of energy on the Moon via sunlight, to offset that.
I would think that non-contact tunnelling/mining technologies would definitely be more suited to the Moon and Mars.  One is trading relatively high energy needs for vastly reduced mechanical complexity, and regularly shipping heavy expendable parts to those locations makes much less sense than occasionally shipping power sources (which can be used for other things than tunnelling).

Online launchwatcher

  • Full Member
  • **
  • Posts: 294
  • Liked: 198
  • Likes Given: 227
Re: Elon The Boring Company
« Reply #605 on: 10/05/2017 02:42 PM »
I don't know how they filmed that scene. It looked very real, not CGI. Vast open spaces and trucks driving around in them with very wide base rock pillars to keep it stable. Road headers would be involved in building something like this.

Unfortunately I don't remember the name. Otherwise I would do some screen shots. Very impressive. A facility to live in without claustrophobia.
Probably took someone else's footage of a tour of http://springfieldunderground.com/ or some similar place...

Offline Oersted

  • Member
  • Full Member
  • ****
  • Posts: 683
  • Liked: 321
  • Likes Given: 178
Re: Elon The Boring Company
« Reply #606 on: 10/12/2017 07:45 PM »
From Gwynne Shotwell Q&A:

(This is not verbatim, but from notes by Reddit-user "Sticklefront": https://www.reddit.com/r/spacex/comments/75ufq9/interesting_items_from_gwynne_shotwells_talk_at/)

"Will SpaceX work with other companies regarding infrastructure on the surface of Mars?

SpaceX is focused on the transportation part of the Mars problem, but people need somewhere to go once they arrive. I don't think it's an accident that Elon started the Boring Company, tunnels will be very important in the first steps of living on Mars, before we build domes and terraform. We want other companies to start thinking about it and working on it, but we'll do it if we have to. I think the BFR might be ready before these other components of actually living on Mars."

Offline guckyfan

  • Senior Member
  • *****
  • Posts: 6307
  • Germany
  • Liked: 1576
  • Likes Given: 1378
Re: Elon The Boring Company
« Reply #607 on: 10/13/2017 04:48 PM »
Tunnels being early, before surface habitats, that's remarkable. First step the BFS is the habitat. Second step already tunneling? Makes sense if they want to increase number of people very early.

Offline speedevil

  • Full Member
  • ***
  • Posts: 311
  • Fife
  • Liked: 143
  • Likes Given: 126
Re: Elon The Boring Company
« Reply #608 on: 10/13/2017 04:57 PM »
Tunnels being early, before surface habitats, that's remarkable. First step the BFS is the habitat. Second step already tunneling? Makes sense if they want to increase number of people very early.

There is some step between 'first' and 'second' there.

For example, surface habitats without domes qualify.

"terraform" can't reasonably be done in a century.

Earth bermed structures are quite low risk - tunneling isn't, at least initially.


Offline sanman

  • Senior Member
  • *****
  • Posts: 3720
  • Liked: 459
  • Likes Given: 3
Re: Elon The Boring Company
« Reply #609 on: 10/14/2017 02:06 PM »
I think it would be best to exploit natural caves and lava tubes, since you'd want a lot of protection between you and meteors, besides against radiation. Berms aren't necessarily going to give a lot of protection against meteors.

Hopefully The Boring Company's technology could be deployed on the Moon before trying it on Mars, since the Moon is lower-hanging fruit.


Online Robotbeat

  • Senior Member
  • *****
  • Posts: 26863
  • Minnesota
  • Liked: 6771
  • Likes Given: 4802
Re: Elon The Boring Company
« Reply #610 on: 10/14/2017 02:13 PM »
Meteors aren't a large risk on Mars. Micrometeorites are not even able to reach the surface (except high altitude sites like Olympus Mons).
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

To the maximum extent practicable, the Federal Government shall plan missions to accommodate the space transportation services capabilities of United States commercial providers. US law http://goo.gl/YZYNt0

Offline sanman

  • Senior Member
  • *****
  • Posts: 3720
  • Liked: 459
  • Likes Given: 3
Re: Elon The Boring Company
« Reply #611 on: 10/14/2017 02:59 PM »
I dunno - the imaging from MRO has occasionally picked up changes in the surface terrain attributed to meteor impacts.
« Last Edit: 10/14/2017 03:09 PM by sanman »

Offline philw1776

  • Full Member
  • ****
  • Posts: 824
  • Seacoast NH
  • Liked: 464
  • Likes Given: 236
Re: Elon The Boring Company
« Reply #612 on: 10/14/2017 03:09 PM »
I dunno - the MRO has occasionally noticed changes in the surface terrain images attributed to meteor impacts.

More common micrometeorites are a danger on the moon, not on Mars.  Bigger rocks are less common and yes, more will reach Mars' surface than Earth's.  An acceptable risk.
“When it looks more like an alien dreadnought, that’s when you know you’ve won.”

Tags: