摘要
如今,我国矿井施工类型通常是井工施工,因此在矿井内部施工期间必须布设众多的巷道。因为各个地区的地质条件各不相同,同时矿井内部施工期间巷道施工过程中可能因为周边采空位置和周边岩层构造的损坏出现变动,造成周边岩层的稳定性出现变动,在此种情况下周边岩层可能出现节理发育以及缝隙位置出现损坏,若是同时发生采动现象,周边岩层可能出现形变以及松动,进而妨碍回采作业的开展。如果周边岩层的平衡性受到损害,可能造成之前的支护技术无法符合如今的支护要求,严重时可能因为长时间的回采作业导致巷道出现形变情况,导致巷道的支护工作难度系数增加。通常情况下,人们可以应用提高周边岩层构造性能的方式来优化巷道形变程度,保证巷道防护工作更加简便。
Nowadays,the type of mine construction in China is usually underground construction,so many tunnels must be laid during the internal construction of the mine.Because the geological conditions in different regions are different,the stability of surrounding rock strata may change due to the damage of surrounding mined-out position and surrounding rock stratum structure during the tunnel construction in the mine.In this case,the surrounding rock strata may develop joints and the gap position may be damaged.If mining occurs at the same time,the surrounding rock strata may be deformed and loosened,thus hindering the development of mining operations.If the balance of surrounding rock strata is damaged,the former support technology may not meet the current support requirements.In severe cases,the roadway may be deformed due to long-term mining operation,which leads to an increase in the difficulty coefficient of roadway support.Usually,people can optimize the deformation degree of roadway by improving the structural performance of surrounding rock strata,and ensure that the roadway protection work is simpler.
作者
尹国庆
Yin Guoqing(Heshun Xindadi Coal Industry Co.,Ltd.,Yangquan Coal Industry Group,Shanxi,032700)
出处
《当代化工研究》
2021年第8期64-65,共2页
Modern Chemical Research
关键词
综采面回采巷道
注浆加固
应用策略
mining roadway in fully mechanized mining face
grouting reinforcement
application strategy
