近距离空间交叉软岩巷道底鼓治理方法

lose spatial cross roadways are affected many times by the stress which will be repeated spray body cracking, at the end of the dark, tunnel deformation, etc.The traditional method is undercover on the roadway cracking, deformation of the local processing, anchor net spray temporary support protection, supporting the metal arched shed that is a passive supporting method, the above-mentioned above do not take advantage of the principle which is roadway in the stress cycle changes, so that the status of roadway has been a long period of instability, the paper study the close spatial cross roadway repair carried out active and effective exploration and achieved better results.