Dab tsi ua rau strip mining?
Dab tsi ua rau strip mining?

Video: Dab tsi ua rau strip mining?

Video: Dab tsi ua rau strip mining?
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Sawb mining rhuav tshem tej toj roob hauv pes, hav zoov thiab tej tsiaj qus tej vaj tse nyob rau ntawm qhov chaw ntawm lub mine thaum ntoo, nroj tsuag, thiab av saum toj no tshem tawm ntawm lub mine. mining thaj tsam. Qhov no nyob rau hauv lem coj mus rau av yaig thiab kev puas tsuaj ntawm av ua liaj ua teb. Thaum nag ntxuav cov av saum toj kawg nkaus loosened mus rau hauv cov kwj deg, sediments pollutes dej.

Tsuas yog li ntawd, dab tsi yog mined hauv strip mining?

" Sawb mining "yog kev xyaum ua mining ib lub seam ntawm cov ntxhia, los ntawm thawj zaug tshem tawm ntev strip ntawm overlying av thiab pob zeb (lub overburden). Nws yog feem ntau siv rau kuv coal thiab lignite (xim av coal). Sawb mining tsuas yog siv tau thaum lub cev ore yuav tsum tau khawb yog nyob ze ntawm nto.

Tsis tas li ntawd, strip mining pib li cas? Xyoo 1960, mining tuam txhab pib mus bulldoze thiab dynamite hillsides mus txog thee veins tsis khawb. Daim ntawv no ntawm strip - mining , hu ua contour mining , ua rau pom kev puas tsuaj ntau dua li cov tsoos sib sib zog nqus mining , tawm hauv roob mus tas li gouged thiab, tej zaum, farmland puas.

Ib yam li ntawd, dab tsi yog qhov ua rau mining?

Cov peev txheej tuaj yeem suav nrog kev ua haujlwm lossis tso tseg saum npoo av thiab hauv av cov mines , ua cov nroj tsuag, thaj chaw pov tseg, kev thauj mus los, lossis cov pas dej tailings. Sediments, feem ntau los ntawm nce av yaig, ua Siltation los yog smothering ntawm streambeds.

Qhov twg yog strip mining tshwm sim?

Sawb mining tau tshwm sim nyob rau hauv Appalachian Roob thiab cov cheeb tsam uas nyob ib sab, Central Plains los ntawm Indiana thiab Illinois los ntawm Oklahoma, thiab tshiab mines rau subbituminous thee nyob rau hauv North Dakota, Wyoming, thiab Montana.

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