Microtunnel / Zemní protlak

11 March 2011

In order to have my computers in a rack in the basement, I needed a way to run cables directly from my desk (in the living room) to the basement. After considering the alternatives, I contracted for a "microtunnel" to be dug hydraulically. It leads from the basement, where the rack will be, to the root cellar which is directly under my desk.

The length of the tunnel is about 6 meters.

 The contractors arrived more-or-less on-time and began setting up their "stuff".

 The compressed air from the compressor flows through this hose.
 

 After measuring, they jackhammered a hole through the masonry wall. Then they stuck the "mole" into it and let it do its work.

In this picture, you can see the "mole" as it gradually rams its way into the clay. Of course, what you don't see is the infernal racket it made, nor do you feel the whole house shaking.

In it goes.

And out the other side.

The camera doesn't do it justice. It was an amazing thing to watch!