Opencast mining yog dab tsi hauv thaj chaw?

Cov txheej txheem:

Opencast mining yog dab tsi hauv thaj chaw?
Opencast mining yog dab tsi hauv thaj chaw?

Video: Opencast mining yog dab tsi hauv thaj chaw?

Video: Opencast mining yog dab tsi hauv thaj chaw?
Video: A.P and T.S current affairs week 02 (29th June - 04th July 2020) 2024, Kaum ib hlis
Anonim

Open-pit mining, or open-cast mining is a deg mining technique of extracting rock or minerals from the earth los ntawm lawv tshem tawm ntawm lub qhov qhib los yog qiv Daim ntawv no ntawm mining txawv ntawm cov txheej txheem extractive uas yuav tsum tau tunneling rau hauv lub ntiaj teb, xws li ntev phab ntsa mining.

subsurface mining txhais li cas?

Kev rho tawm cov hlau ore lossis pob txha roj los ntawm hauv qab ntawm av.

Dab tsi yog qhov mining Luv teb?

Ntog mining yog hais txog kev tshem tawm ntawm thaj av kom nkag mus rau cov zaub mov hauv qab. Tshwj xeeb, qhov chaw mining yog siv los khaws cov xuab zeb, pob zeb, pob zeb, thee, hlau thiab lwm yam hlau.

Dab tsi yog overburden txhais li cas hauv kev mining?

Nyob rau hauv mining, overburden ( tseem hu ua pov tseg lossis lwj) yog cov khoom uas nyob saum thaj chaw uas qiv nws tus kheej rau kev siv nyiaj txiag, xws li pob zeb, av, thiab ecosystem. uas nyob saum lub coal seam los yog ore lub cev. … Overburden raug tshem tawm thaum lub sij hawm mining ntog, tab sis feem ntau tsis kis nrog cov tshuaj lom.

Dab tsi yog qhov qhib qhov mining Luv teb?

Qhib qhov mining txhais tau tias yog txheej txheem ntawm kev rho tawm ib qho ze ntawm qhov chaw ore tso nyiaj siv ib lossis ntau lub rooj zaum kab rov tav los rho tawm cov ore thaum dumping overburden thiab tailings (khoom pov tseg) ntawm ib tau teev tseg qhov chaw pov tseg sab nraum lub qhov kawg ciam teb.

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