3 ms·

I'm not expert on this, but I think that the use of a horizontal drill is more common. Check out this horizontal drill: http://www.ballantineinc.com/sites/defa

• RyJones 10y ago
  For a city like San Francisco, only a fraction of what is in the ground is mapped. The only reasonable option is many places is to dig up the ground and look at what you're working with. Even in the area I live in, ripping up the streets is how it's done. I've only seen horizontal boring machines deployed a few times around here. Maybe they're used a lot and I don't notice them because I don't have to drive around them, but I do keep a eye open for them in the wild. I considered renting or buying one for a project and was impressed how cheap they are, but the benefit of burying things versus the price - no contest. What I learned, though, is there are eBay-like markets for TBMs and it seems most people buy one with so many hours on it, use it for a project, and sell it +so many hours. I didn't find the thriving rental market I expected.
  • josh2600 10y ago
    I can confirm that horizontal boring machines have never been used in any telco digging opportunity I've been a part of :/. I wish it were the case but it is all tear-up-the-streets territory.