摘要
为保障3216工作面沿空留巷围岩的稳定,采用理论分析的方式进行基本顶破断对沿空留巷围岩变形影响的研究,结合巷道特征及赋存条件,设计巷道采用锚网索+巷旁充填体+补强和临时支护方案,在留巷期间进行围岩变形量的监测分析。结果表明:3216工作面回采期间,沿空留巷巷道围岩变形量较小,支护方案保障了留巷围岩的稳定。
In order to ensure the stability of surrounding rock of gob retaining roadway in 3216 working face,the influence of basic roof breaking on surrounding rock deformation of gob retaining roadway is studied by means of theoretical analysis.Combined with roadway characteristics and occurrence conditions,the roadway is designed to adopt the scheme of anchor mesh cable+roadway side filling+reinforcement and temporary support,and the surrounding rock deformation is monitored and analyzed during roadway retaining.The results show that the deformation of surrounding rock of retaining roadway along goaf is small during mining in 3216 working face,and the support scheme ensures the stability of surrounding rock of retaining roadway.
作者
荆俊杰
Jing Junjie(Huayang Group Xinjing Company,Shanxi Yangquan 045008)
出处
《山东煤炭科技》
2021年第8期79-81,85,88,共5页
Shandong Coal Science and Technology
关键词
中厚煤
沿空留巷
支护
medium thick coal
gob-side entry retaining
support
