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Room and pillar mining is when pillars of rock are left standing to support the roof. Between the pillars, coal or ore is cut out and removed leaving spaces known as rooms.
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What is lunar mining?
It would be mining on the earth's moon. We have not done that.
When a stalactite and a stalagmite joined what is formed?
a pillar!
Data mining is it another hype?
What is data mining?is data mining another hype?Is it a simple transformation of technology developed from databases, statistics, and machine learning?how the evolution of database technology led to data mining.the steps involved in data mining when viewed as a process ofknowledge discovery.
When would you most likely see a solar pillar?
at nite
What is the 11th pillar of the great national dome that the cartoon refers to?
guacamole.
How is lomgwall mining superior to pillar mining?
Safer, more productive, more economical.
What is meaning of board in board and pillar system of mining?
It should be bord and pillar, but for some reason it has been used as board and pillar. IMO it was a mistake but carried through now.
What has the author Larry E Green written?
Larry E. Green has written: 'Comparative shortwall and room-and-pillar mining costs' -- subject(s): Pillaring (Mining), Mining engineering
What are the benefits of cast mining compared to underground mining?
Underground mining is very expensive, and "room and pillar" methods only permit removal of a portion of what is being mined- something had to hold up the roof.
What has the author Christopher Mark written?
Christopher Mark has written: 'Roger Smalley' -- subject(s): Composition (Music), Criticism and interpretation, History 'Pillar design methods for longwall mining' -- subject(s): Longwall mining, Pillaring (Mining)
What has the author Michael H Matsumunyane written?
Michael H. Matsumunyane has written: 'Design of pillars in post pillar mining'
What has the author P W Kauffman written?
P. W Kauffman has written: 'Room and pillar retreat mining (a manual for the coal industry)'
What has the author A A Campoli written?
A. A. Campoli has written: 'Coal mine bumps' -- subject(s): Coal mine accidents, Rock bursts 'Control of longwall gob gas with cross-measure boreholes (upper Kittanning coalbed)' -- subject(s): Boring, Coal mines and mining, Firedamp, Mine ventilation, Safety measures 'Performance of a novel bump control pillar extracting technique during room-and-pillar retreat coal mining' -- subject(s): Coal mines and mining, McDowell County, Pillaring (Mining), West Virginia
What Pokemon can you get in only diamond and where?
In Pokemon Diamond you can only get Diagla, and Cranidos Diagla you get at the Spear Pillar - goes with the story timeline! Cranidos is a fossil you get revived in the mining museum!
On Star Wars Knights of the Old Republic how do you get past the pillars in the tomb of Naga-Something?
It's a basic ring on pole puzzle, to get past it and complete the Naga Sadowtomb quest you need to activate the Computer Terminal and selectthe following inputs in order to complete the puzzle:- Move a system from the left pillar.- The right pillar.- Move a system from the left pillar.- The middle pillar.- Move a system from the right pillar.- The middle pillar.- Move a system from the left pillar.- The right pillar.- Move a system from the middle pillar.- The left pillar.- Move a system from the middle pillar.- The right pillar- Move a system from the left pillar.- The middle pillar.- Move a system from the right pillar.- The left pillar.- Move a system from the middle pillar.- The left pillar.- Move a system from the right pillar.- The middle pillar.- Move a system from the left pillar.- The right pillar.- Move a system from the left pillar.- The middle pillar.- Move a system from the right pillar.- The middle pillar.- Move a system from the left pillar.- The right pillar.- Move a system from the middle pillar.- The right pillar.- Move a system from the middle pillar.- The left pillar.- Move a system from the right pillar.- The left pillar.- Move a system from the middle pillar.- The right pillar.- Move a system from the left pillar.- The middle pillar.- Move a system from the left pillar.- The right pillar.- Move a system from the middle pillar.- The right pillar.This completes the puzzle and you can proceed.(It may be time consuming, but really not all thathard to solve if you think about it.)
What are similes for pillar?
Strong as a pillar. Solid like a pillar. Straight as a pillar.
Where can you find obsidian in minecraft pe?
In the full version of Minecraft, obsidain is usually found in the deep part of caves. Since there are no cave systems in minecraft pe, it's really hard to find it. You just have to keep on mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining and mining until you luckily find obsidian.
