Many pillars remain in underground mines when the roomandpillar mining technique is used. the pillars can protect the equipment and ensure the safety of workers during the deep mining of solid mineral resources, where structures are left between two or more underground openings (li, zhou, wang, amp liu, 2017).therefore, proper pillar stability has always been of interest.

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Bord and pillar in india adopted induced caving of roof coal band for single lift depillaring of total thickness (sldtt) of a competent thick coal seam developed along floor. case studies are given to arrest the adverse effects of extraction height on pillars.

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In the typical mining conditionsnamely the tendency to extract signicant rock along with the target coalhave prompted new research to characterize dust exposures in us underground coal mines 79. in australia, cwp was reidentied in 2015, after decades with no case reports 10.

Sandvik mining product line manager, underground coal and minerals bruno reumueller said the mc350 was a worthy addition to the mc range for costefficient operations. thanks to a higher weight class, shearup capability and loading and conveying modules, our continuous miners can improve productivity by 1020 compared to other.

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Sandvik offers a wide range of extremely productive and reliable continuous miner cutting tools for bord and pillar mining. cutting tools for roadheaders and miners sandvik has a wide selection of highly productive conical mining tools for roadway development.

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