Of or involving a single long face worked (usually mechanically) along its whole length: longwall mining
More example sentences
- In 1976, Old Ben Coal Co., with Federal assistance, began a trial of modern mechanized longwall mining in a new area of their No.24 mine in the Herrin Coal seam.
- The three main underground mining methods are stoping, room-and-pillar mining, and longwall mining.
- A single longwall path can stretch for two miles, causing everything on the surface directly above it to collapse.
For editors and proofreaders
Line breaks: long|wall
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.