Longwall mining explained | Underground Mafia

Principles of Longwall Mining | World Mining Engineers

Longwall Working | Mine Portal

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Underground longwall mining method. Longwall mining method is a fast mechanised method of coal mining. Follow us at tunnel.engineering Video credit: LinkedIn Mining Doc #undergroundmining #coalmine #longwall #longwallmining #coalmining #coal #undergroundmethod #tunnellingmethod #underground #mining #miningengineering #miningengineer #miningindustry #tunnelling #tunneling #tunnelengineering #tunnelengineer #tunnel #mining #miningtechnology #tunnellingtechnology #TunnellingCourse #tunellingtechniq

Following a conventional cut with a shearer to about 3 m (9.8 ft) the roof supports move forward and allow the caving of the top coal behind the roof supports a second conveyor mounted gob-side. This special LTCC method enables increased coal reserve recovery for only an incremental additional cost. This animation shows how it works. | Online Mining Exam

The long wall excavation method in mining is a highly efficient technique primarily used in coal mining, involving the full extraction of large rectangular coal blocks in a continuous operation. Using a long wall face, typically 100 to 300 meters long, hydraulic roof supports, or shields, hold up the mine roof while a shearer or plow cuts the coal. The coal is transported to the surface via a conveyor belt. As the shearer advances, the supports move forward, allowing controlled roof collapse, kn