港里矿软破围岩采矿的分析与研究

Analysis and Research on Soft Rock Mining in Gangli Mine

港里矿围岩软弱破碎,随开采深度延伸,地压显现越来越剧烈,严重影响港里矿正常回采。为研究港里矿软破围岩采矿,分析了影响采矿正常进行的因素和机理,调整采矿的顺序,使港里矿软破围岩采矿的困难得到根本扭转,保证了采矿生产的正常进行,选择围岩稳固及充分卸压部位布置斜坡道和联巷、优先回采围岩破碎的高应力区是地压管理的关键问题。

The surrounding rock of Gangli Mine is weak and broken,and the ground pressure appears more and more intense with the mining depth extending,which seriously affects the normal mining of Gangli Mine.In this paper,through the study of soft-broken wall rock mining in Gangli Mine,the factors and mechanism affecting the normal mining are analyzed,and the mining order is adjusted,so that the difficulty of soft-broken Wall rock mining in Gangli Mine is fundamentally reversed,the key problem of ground pressure management is to select the stable surrounding rock,to arrange the slope and the joint roadway in the fully relieved pressure position,and to select the high stress area where the surrounding rock is broken.