Research on Anchor Frame Injection Support Construction Technology for Soft Surrounding Rock Tunnels in Deep Coal Mines
In view of the large displacement of the roadway under the stress of surrounding rock,this paper puts forward the construction technology of bolt frame grouting support for soft surrounding rock roadway in deep mines in coal mines.The design is carried out from the aspects of bolt setting,metal mesh laying,steel support erection and grouting construction,and the specific construction materials,methods and operation points are defined.The progressiveness of the technology is verified by examples.The results show that the displacement of the two sides of the roadway in deep mines and the displacement of the roadway roof and floor are always stable at a relatively low level,and the application effect is good.
deep coal minessoft surrounding rock roadwayanchor frame injection supportmetal mesh layingsteel bracket installationgrouting construction
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