barrier pillar मीनिंग इन हिंदी

उदाहरण वाक्य

1. This pillar was adjacent to the north barrier pillar.
2. Pillars known as barrier pillars separate the panels.
3. Genwal Resources was reported to use overly aggressive mining, and failed to recalibrate their modeling of Crandall's supposed stability to match the reduction of crucial barrier pillars.
4. On March 10, 2007 the north barrier pillar suffered from a rock burst, in which pressure causes material from the walls and ceiling to explode inward into the excavated spaces.
5. The Susquehanna River watershed is immediately north and west of the watershed of Black Creek, while the watershed of barrier pillar between the West End Mine and the Glen Lyon Mine.
6. The company depended on the low-ash coal to meet its contractual obligations, however, so on March 21 a meeting was held in which it was decided to return to the south barrier pillar.
7. The barrier pillars are significantly larger than the " panel " pillars and are sized to allow them to support a significant part of the panel and prevent progressive collapse of the mine in the event of failure of the panel pillars.