Metal and Nonmetal National Mine Rescue Contest Rules

STULL/PROP - Column of wood or steel used for supportof underground openings.SUMP - An excavation in the shaft or mine made belowthe mining level to collect mine water.SUPPLY PLATFORM - Area set aside for storage ofmaterials.SURVIVOR - Person found alive in the mine.SWITCH - An electrical switch.TAGLINE - Short line no longer than 3 feet hooked froma team member to the team line.TEAM LINE - Line that links team members together(extension of lifeline).TIMBER SET - Tunnel support consisting of a roof beamor arch and two posts.TYING ACROSS AND BEHIND - Systematic explorationof all in ter sect ing and ad ja cent pas sage ways so thatthe team is never for ward (to ward the work ing face) ofan accessible, unexplored area.UNDERCAST - An en closed air way built at an in ter sec -tion of mine pas sages that per mits one air cur rent to passun der an other air cur rent with out mix ing.UPCAST - The opening through which the return air isremoved from the mine. The opposite of downcast orintake.VENT BAG - An enclosed airway to direct airflow to agiven area or location.WINZE - An opening, like a small shaft, sunk from aninterior point in a mine.WORKING PLACE - Any place in or about a mine wherework is being performed.101