A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods.
As the pace of change for technology increases, we can see the impact in many areas of engineering. One clearly visible trend is the more frequent use of large diameter Tunnel Boring Machines (TBMs). There is a clear movement around the world to consider larger TBM tunnels as a cost effective option ...
Click here to download a high resolution (3 Mg) printable copy of the pamphlet . Directional boring, commonly called horizontal directional drilling or HDD, is a method of installing underground pipes and conduits along a prescribed bore path from the surface, with minimal impact to the surrounding area.
About Pilot Tube Guided Auger Boring Systems: By using the pilot tube trenchless method of installing underground utilities, water lines and sanitary sewers, you can reduce costs by 50% when compared to complicated laser controlled microtunneling systems.
Secret Underground Bases and Facilities. The history of humanity is laced with stories about secret underground facilities and bases that go back to the beginning and - more recently highlighted with catacombs of many cities - and caves that lead to underground chambers for all sorts of purposes, mostly thought of as clandestine - run by the men in power in a particular timeline.
Slurry TBM (Benton' Air®) Developed and patented by NFM Technologies, the Benton' Air® tunnel-boring machine (Slurry TBM) is used for tunnel-boring in highly permeable unstable terrain, or under civilian structures sensitive to ground disturbances.
Horizontal earth boring machine as well as horizontal Road Boring Machines, underground earth boring equipment and a Underground earth boring machine. Maxi-Bore can supply you with your Earth Boring Tools, Earth Boring Equipment, and Earth Boring Machines