原相煤矿松软煤层巷道围岩控制技术研究

Study on Surrounding Rock Control Technology of Soft Coal Seam Roadway in Yuanxiang Coal Mine

针对原相煤矿松软煤层巷道变形量大、维护困难的问题,采用理论分析、现场实测方法进行了研究,提出了锚网索联合支护与“浅孔低压+深孔高压”分层次耦合注浆相结合的围岩控制技术,确定了合理的支护参数及注浆参数,减少了巷道变形量,具有一定的现实意义。

In view of the problems of large deformation and difficult maintenance of soft coal seam roadway in Yuanxiang Coal Mine,the research is carried out by means of theoretical analysis and field measurement.The surrounding rock control technology of combined support of anchor,mesh and cable and hierarchical coupling grouting of"shallow hole low pressure+deep hole high pressure"is put forward,the reasonable support parameters and grouting parameters are determined,and the roadway deformation is reduced,which has a certain practical significance.