Timbering in Underground Anthracite Mines (Part 1)
Mine Safety and Health Administration
Education
Clips are not offered for this film: the Internet Archive does not let a page read its file (no CORS headers), so it cannot be cut in your browser.
Parts
About
Mine Safety and Health Administration
Timbering in Underground Anthracite Mines (Part 1) DVD589 (Was VC807) - 1994 ( Part 1 | Part 2 ) Timbering is the most common roof support method used in underground anthracite mines. The system of timbering is governed by the character of the top and bottom, thickness of the coal vein, pitch of the coal vein, life of the entry, haulage system, and the operator’s approved roof control plan. This videotape demonstrates the fundamentals and characteristics used in installing typical timber sets: single prop, post and bar (two-piece sets), and “double timber” (three-piece sets).
- Archive
- Internet Archive, in FedFlix: US government films
- Licence or status
- Public domain (Creative Commons dedication), as the Internet Archive states it.
- Credit
- Mine Safety and Health Administration
- Language
- English
- Who can watch
- The archive gives no rating. Invisible Network shows it to Tweens profiles and older, judged from its collection and subjects. How films are placed