综采工作面超前应力区支护优化  

Optimisation of Support for Overstressed Zone in Comprehensive Mining Face

作　　者：常晋峰 Chang Jinfeng(Shanxi Coal Transportation and Marketing Group Jinzhong Co.,Ltd.,Jinzhong Shanxi 030600,China)

机构地区：[1]山西煤炭运销集团晋中有限公司,山西晋中030600

出　　处：《机械管理开发》2023年第10期130-131,142,共3页Mechanical Management and Development

摘　　要：基于掌石沟煤矿15104工作面在初采期间受周期来压、初次来压影响,工作面回采至60~130 m段回风顺槽超前应力区范围内顶板及两帮下沉严重,出现局部冒漏现象,原巷道内支设的单体柱出现变形、卸压现象,支护效果差的问题,决定对回风顺槽超前应力区支护进行合理优化,提出了可伸缩超前支架支护。通过实际应用效果来看,工作面在后期回采中应力区巷道围岩变形得到了有效控制,取得显著应用成效。Based on the influence of cyclic pressure and initial pressure during the initial mining period of 15104 working face of Zhaoshigou coal mine,the roof plate and gang sinking within the overstress area of the wind-back tunnels in the section of 60~130 m of the working face are serious,and there is a phenomenon of local bubbling and leaking,and the monolithic columns supported in the original roadway are deformed and decompression,and the supporting effect is poor,it is decided to carry out reasonable optimisation for the support of overstress area of wind-back tunnels and propose the support of retractable super-anterior support.It is decided to reasonably optimise the support for the overstress area of the return wind tunnel,and the retractable overstress support is proposed.Through the actual application effect,the working face in the later mining in the stress zone roadway deformation has been effectively controlled,and achieved significant application results.

关 键 词：综采工作面 超前应力区 围岩支护 

分 类 号：TD355[矿业工程—矿井建设]