摘要
为了解决中能煤业1308回风顺槽掘进时受断层影响变形大的问题,本文采用理论分析和现场实测相结合的方法,对巷道过断面的受力形式及支护进行了分析,提出了利用U型钢支架及复喷砼对原有的支护进行补强的加强支护形式。实测结果表明,采用加强支护后的巷道围岩表面位移量较小,巷道较稳定性,为安全开采提供了保证。
In order to solve the problem of large deformation under the influence of fault during 1308 return air tunneling in zhongneng coal industry, this paper analyzes the force form and support of roadway over section by theoretical analysis and field measurement, and proposed a strengthened support which is using U-shaped steel support and respraying concrete to reinforce the original support. The actual measurement results show that the surface displacement of the surrounding rock of the tunnel after strengthening support is small, and the tunnel is relatively stable, which provides a guarantee for safe mining.
作者
孟尚斌
Meng Shangbin(Changzhi Sanyuan Zhong energy coal industy Co.,Ltd.,Jinneng group,Changzhi Shanxi 046600)
出处
《同煤科技》
2020年第2期39-41,共3页
Datong Coal Science & Technology
关键词
理论分析
围岩变形
现场实测
Theoretical analysis
Surrounding rock deformation
Field measurement
