Cage — In a mine shaft, the device, similar to an elevator car, that is used for hoisting personnel and materials. Calorific value — The quantity of heat that can be liberated from one pound of coal or oil measured in BTU's.
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The Boring Company seems to be making steady progress refining its tunneling machine, originally a used one from China Musk rechristened “Godot.”
Pilot tube systems can reduce costs by 50% compared to laser controlled microtunneling systems. Learn more about ICON's guided auger boring systems today.
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KAMY series of Roadheaders offers the best cutting performance in a wide range of rock formations. Equipped with geometrically optimized transverse or longitudinal cutter heads, these flexible machines can be used to excavate subway tunnels, road tunnels, railway tunnels and water tunnels without using explosives.