Open-pit mining, tseem hu ua opencast mining, yog ib qho txheej txheem mining uas rho cov ntxhia los ntawm qhib qhov hauv av. Qhib-qhov mining yog txoj kev siv dav tshaj plaws thoob plaws ntiaj teb rau kev khawb av thiab tsis tas yuav siv cov txheej txheem los yog qhov tunnels.
Yuav ua li cas mining yog qhib-qhov mining?
Open-pit mining, los yog qhib-cam mining yog a cov txheej txheem mining ntawm cov pob zeb lossis cov pob zeb hauv ntiaj teblos ntawm lawv tshem tawm ntawm lub qhov qhib lossis qiv. Daim ntawv mining no txawv ntawm cov txheej txheem extractive uas yuav tsum tau tunneling rau hauv lub ntiaj teb, xws li ntev phab ntsa mining.
Qhov txawv ntawm qhov qhib qhov mining thiab subsurface mining yog dab tsi?
Ntog mining, suav nrog sawb mining, qhib-qhov mining thiab mountaintop tshem tawm mining, yog ib tug dav qeb ntawm mining nyob rau hauv uas av thiab pob zeb overlying cov mineral deposit (cov overburden) raug tshem tawm, nyob rau hauv sib piv rau underground mining, nyob rau hauv uas lub pob zeb overlying tau tso rau hauv qhov chaw, thiab cov pob zeb tau raug tshem tawm los ntawm …
Dab tsi yog 2 hom kev mining subsurface?
Peb hom kev mining subsurface yog chav thiab ncej, longwall, thiab tshuaj mining.