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Source publication
As a result of the exploitation of coal in the mines from the Jiu Valley, significant quantities of tailings result from the mining works, but also from the coal preparation processes. They are stored in piles of different sizes, placed on the ground horizontally or between mountains, piles called tailings dumps. For the construction of tailings du...
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The segment lining is a new type of support structure for mining tunnels. The disturbance of coal excavation leads to the deformation of segment lining and has great hazards to the safety of the tunnels. Based on the tunnel boring machine (TBM) inclined tunnels in Xinjie mine, the ultimate span L 0 of the rock beam on the top slab of the coal seam...
Citations
The paper presents the possibility of using aramids and para-aramids in order to increase the mechanical and thermal quality of individual protective equipment and the possibility of being used in harsh environments. The work will highlight the physico-chemical characteristics of aramids and para-aramids in comparison with the classic materials from which individual protective equipment is made in the present. The utility of the equipment will also be taken into account for their use underground in mining operations, a condition that is fulfilled by their chemical treatment.