摘要
针对焦煤中马村矿23巷道在动压影响下进行扩修的问题,采用FLAC3D对此进行数值模拟研究,通过对未扩修巷道和扩修巷道的应力分析,得出扩修巷道应力等方面的不对称性,采用锚杆加锚索,在表层进行喷射混凝土的联合支护并在关键部位进行加强支护的方式,并通过悬吊理论设计的支护参数,很好地控制巷道围岩的稳定性。
Conducted for coking coal Zhongmacun mine 23 roadway under dynamic pressure expansion repair problems,using FLAC3 Dnumerical simulation,it did not extend through the repair and expansion of roadway roadway repair stress analysis,the expansion and maintenance of the roadway stress,etc.asymmetry,plus the use of anchor bolt,the joint surface of shotcrete support and strengthen support in key parts of the way,supporting arguments and theories through suspension design,good control of roadway stability.
出处
《煤炭技术》
CAS
北大核心
2014年第9期94-96,共3页
Coal Technology
关键词
动压
扩修巷道
数值模拟
支护方式
dynamic pressure
repair roadway expansion
numerical simulation
supporting way
