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守恒發(fā)展運(yùn)輸業(yè) 基礎(chǔ)設(shè)施CONSERVATION AND DEVELOPMENT OF TRANSPORT INFRASTRUCTURE

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更新時間：2021-09-14
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煤炭資源保護(hù)是一個重要領(lǐng)域，特別是在美國煤炭儲量有限。采煤的節(jié)約方面從計劃階段考慮權(quán)利并最大限度地恢復(fù) 在實施階段確保。礦山設(shè)計通過露天開采或通過露天開采煤層地下法取決于技術(shù)可行性和經(jīng)濟(jì)可行性。機(jī)械化露天采礦是目前普遍采用的采礦方法。采用淺埋厚煤層開采技術(shù)。從保護(hù)的觀點(diǎn)來看，這也是很重要的，因為該法回收率在80%～90%之間。目前，該技術(shù)主導(dǎo)了煤炭工業(yè)的貢獻(xiàn)。約占全國煤炭產(chǎn)量的90%。此外，無論何時可行的是，正在開發(fā)的地下礦柱通過公開廣播操作提取。

Conservation of Coal is an important area, particularly when our Coal reserves are fnite. The aspect of conservation of Coal is taken into account right from the planning stage and maximum recovery is ensured during the implementation stage. Mines are designed to work the Coal seams either through opencast or through underground methods depending on the technical feasibility and economic viability. Mechanised opencast (OC) mining is presently the commonly adapted technology for extraction of thick seams at shallow depth. This is also important from the conservation point of view since the percentage recovery by this technology is around 80% to 90%. Presently, this technology dominates the Coal industry contributing about 90% of country’s Coal production. Further, whenever it is feasible, the developed pillars of underground mines are being extracted through opencast operations.

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