The installation, operation, and maintenance of an underground mine-wide radio system.
IAS '76: Conference Record of the 1976 IEEE Industry Applications Conference: Eleventh IAS Annual Meeting, October 11-14, 1976, Chicago, Illinois. Piscataway, NJ: Institute of Electrical and Electronics Engineers, 1976 Oct; :1196-1202
An underground communications system has been implemented in Bethlehem Mines Corp.'S Grace Mine, a magnetite ore block caving operation. Two-way voice communications have been established with trackless vehicles and roving personnel. A unique system of UHF/VHF repeaters combined with a "leakey feeder" transmission line offers operational and emergency features not previously found in mine communication systems. Evacuation alarming, personnel paging, fan-hole drill operator communications and maintenance, and safety vehicle radio are features of the installation. The system does not require a dispatcher and operates during power failure. A hoist communications/shaft inspection system completes the communications installation.
Mining-industry; Underground-mining; Radio-waves
OP; Conference/Symposia Proceedings
IAS '76: Conference Record of the 1976 IEEE Industry Applications Conference: Eleventh IAS Annual Meeting, October 11-14, 1976, Chicago, Illinois