摘要
针对15210运输顺槽掘进期间受构造应力影响,巷道掘进至450 m~480 m段顶板应力显现,导致顶板出现破碎、冒落等现象,为了进一步提高应力区顶板稳定性,决定对应力区破碎顶板采取注浆加固技术,通过实际应用效果来看,采取注浆加固后控制了破碎顶板冒落现象,取得了显著应用成效。
Due to the influence of structural stress during 15210 transportation trench excavation,the roof stress in the section of roadway excavation to 450 m~480 m appears,resulting in roof breakage and caving.In order to further improve the roof stability in the stress area,it is decided to adopt grouting reinforcement technology for the broken roof in the stress area.From the practical application effect,the phenomenon of broken roof caving is controlled after grouting reinforcement,and remarkable application results are obtained.
作者
赵海生
ZHAO Haisheng(Shanxi Gaoping Kexing Youxianshan Coal Industry Co.,Ltd.,Gaoping Shanxi 048400,China)
出处
《山西化工》
2021年第4期181-182,210,共3页
Shanxi Chemical Industry
关键词
掘进巷道
应力区
破碎顶板
注浆加固
应用分析
driving roadway
stress zone
broken roof
grouting reinforcement
application analysis
