Analysis of roof countertendency pressure to fully mechanized support stability in steep seam
To ensure the stability of supports of steeply inclined working face has been one of the safety problems.Based on related knowledge of theory of inclined masonry structure and theoretical mechanics and taken a steep face of a mine for basic research, the roof of tilt masonry structure in the tendency of support stability under the action of (decline and dumping) is analyzed.The results showed that the working resistance of working face support can remain stable if not less than 3283 kN, the choice of 4200 kN support resistance is reasonable.Finally, by analyzing the support mechanical model, raised that in the process of working face advancing, support base mounting base pairs of jack, top beam pairs of jack and technical measures such as changing the moving support method can effectively adjust and prevent support dumping and decline phenomenon, greatly improve the support stability, guarantee the production of fully mechanized working face safely and efficiently.
steeply inclined working face fully mechanized working face support stability
MA Shu-yin ZHAO Guang-ming MENG Xiang-rui
School of Mining and Safety, Anhui University of Science and Technology, Huainan 232001, China
国际会议
International Mining Conference 2014(2014国际采矿论坛)
安徽淮南
英文
205-209
2014-09-19（万方平台首次上网日期，不代表论文的发表时间）