RESEARCH AND SELECTION OF THE VERTICAL SEAM COAL MINING TECHNOLOGY SCHEME AT COMPANY 35 - DONG BAC CORPORATION

Abstract

In coal mining in general and vertical seam coal mining in particular, the selection of mining systems and mining technology is crucial. Through studying the geological characteristics of seam 7 of Company 35 - Dong Bac Corporation, which is a thick, steeply inclined seam, based on synthesis method and analysis, the author team has selected a mining system dividing the longwall into panels, a cross-angled longwall, supported by ZRY mechanical soft roof support for implementation in mining. Through the calculation of some economic and technical indicators of the ZRY mechanical soft roof support longwall and comparison with the current mining technology of mobile hydraulic support, it is shown that the ZRY mechanical soft roof support longwall has many advantages over the mobile hydraulic support. It is proposed to apply ZRY mechanical soft roof support to mining vertical seams at Company 35 - Dong Bac Corporation.