Anchored structure technology of loosen soft seam with big dip angle in compound roof
There is the uncertainty of tilting angle of coal seam, large variation of thickness of top coal in Taiping Coal Mine +-700 m level.It caused many difficulties to the production and management, In view of the coal seam occurrence condition of 32151 working face, it is analyzed based on the coal seam thickness, dip angle, the seam roof and floor conditions, working face management difficulty, coal quality and safety condition, the effective method of greater inclined full-mechanized coal seam is proposed.The mine has carried on the detailed supporting design to the first fully mechanized caving face with the Dynamic system design method of the bolt support, that is FLAC3D finite difference numerical simulation software.The Safe and efficient mining of the first sub-level caving mining working face is smoothly realization.
large inclined angle sub-level caving mining anchored structure
WU Yu-liang WANG Shou-quan
Sichuan Coal Industry Group Limited Liability Company, Chengdu 610091 ,China
国际会议
International Mining Conference 2014(2014国际采矿论坛)
安徽淮南
英文
173-177
2014-09-19（万方平台首次上网日期，不代表论文的发表时间）