Large spiral tunnel that communicates with all levels of the mine.
an inclined surface or roadway that moves traffic from one level to another
An inclined underground tunnel that provides access to an ore body for exploration, ventilation and/or mining purposes in an underground mine.
Inclined plane or surface connecting different levels; a stair without a riser(s) to create a smooth, ascend or descend interface between two elevations to enable a person to climb without interruption and to permit the use of wheeled carts, chair or vehicles. Ramp should be of a non-slip surface. All ramps that have a rise greater than 1″ inch every 12″ inches run must have handrails. Ramps with a rise greater than 1½″ inch every 12″ inches of run have proven to cause slip incidents and require extra effort to ascend, particularly for the elderly and disabled. Wide ramps require handrails on both sides. Ramps with open sides must have a handrail or guardrail on the open side. In the design of ramps and to reduce ramp incidents, follow the specifications as set forth by the Americans with Disabilities Act ( ADA).
means an inclined walking or working surface that is used to gain access to one point from another, and is constructed from earth or from structural materials such as steel or wood. (see structural ramp)
an inclined walking or working surface that is used to gain access to one point from another. A ramp may be constructed from earth or from structural materials such as steel or wood.
An inclined underground tunnel which provides access for exploration or a connection between levels of a mine.
An inclined plane connecting two different levels and used instead of steps, elevators or conveyors.
When wind hits a vertical barrier it is thrown vertically. An inclined barrier throws the wind up at an angle. This more gradual process gives a longer flatter protected area behind the windbreak.
an incline leading up to the banquette or allowing access to a gun platform.
A secondary or tertiary inclined opening, driven to connect levels, usually driven in a downward direction, and used for haulage.
The elevated gangway to the ring used in most Japanese federations.
Rural Abandoned Mine Program