摘要
为解决5-202工作面回采期间运输巷围岩变形量大的问题,通过对采动影响的补强支护机理进行具体分析,结合运输巷在原有支护方式下巷道围岩的变形情况,提出桁架锚索+单体锚索+单体支柱的补强支护方案,并在方案使用过程中进行矿压监测。监测结果表明:补强方案实施后,巷道围岩变形量得到了有效控制,保证了巷道的正常使用。
In order to solve the problem of large deformation of surrounding rock of transport roadway in mining period of 5-202 working face,the reinforcement support mechanism of mining influence is analyzed concretely,combined with the deformation of surrounding rock of transport roadway under the original support mode,the reinforcement support scheme of truss anchor cable+single anchor cable+single pillar is put forward,and the mine pressure is monitored during the use of the scheme.The monitoring results show that the deformation of surrounding rock of roadway has been effectively controlled and the normal use of roadway has been guaranteed after the implementation of reinforcing scheme.
作者
赵凯
Zhao Kai(Pangpangta Coal Mine,Lvlin Energy and Chemistry Co.,Ltd.,Huozhou Coal and Electricity Group,Shanxi Linxian 033200)
出处
《山东煤炭科技》
2019年第6期39-41,共3页
Shandong Coal Science and Technology
关键词
回采
软岩
控制
支护
mining
soft surrounding rock
control
support
