There is a lot of variables ie. Face width, depth of cover, extraction height and geological to name a few. Generally the surface does subside but can be designed to minimise the subsidence or eliminate completely if required. A worked example is a typical mine at 250meters depth 300 meter wide, mining a 4 meter seam may result in surface to subside 1 to 2.5 meters.
Simplistic, yes. Accurate, no. There is more roof and pillar mining that's done prior to the longwall. You need more entries (or roads, as he calls them) and more equipment. There's better descriptions out there than this.
Fantastic description and simplistic animations to really explain it in layman's terms. Thank you very much for this!
Good video. Thank you for sharing it.
What software did you use for that animation design, I want to use it for my School Assignment,
Very well done !
explained in 5 mins what took my teacher 1 hour
THANKS!..
Amazing
Excelente
underground long wall mining knowledge
nice video brother
i mean its alright
i mean its alright
Does the ground above the mine sink down because of the coal excavated below?
There is a lot of variables ie. Face width, depth of cover, extraction height and geological to name a few.
Generally the surface does subside but can be designed to minimise the subsidence or eliminate completely if required.
A worked example is a typical mine at 250meters depth 300 meter wide, mining a 4 meter seam may result in surface to subside 1 to 2.5 meters.
Yes
Depends on depth and strata strength above.
Good
Looks like a mineral extraction engineer's job is all about optimization.
yep,but also about safety!
Wow😘❣️
Simplistic, yes. Accurate, no. There is more roof and pillar mining that's done prior to the longwall. You need more entries (or roads, as he calls them) and more equipment. There's better descriptions out there than this.
Very interer
load coal!!!!!!!!!!!!
can't understand the accent
Please tell clearly your voice/ slang is not good
Nice video but your speech is intelligible.