Preliminary Exploration on Experimental Study and Application of Alternative Fast Driving Mesh in Coal Roadway under Complex Conditions in Deep Well
The feasibility of replacing the diamond-shaped metal mesh with the polyester fiber mesh was verified by experimentally studying the unit mass,elongation,single failure stress,network failure stress and mesh bag crushing failure stress of polyester fiber mesh and diamond-shaped metal mesh,and the reliability of the test data of the relevant mesh mechanical test in the laboratory was further verified by numerical simulation,and the field test was carried out in the 1211(1)working face of Guqiao coal mine,and the application effect was good.The results show that polyester fiber mesh can replace diamond-shaped metal mesh for support under complex conditions in deep wells,which provides a certain reference for the renewal and substitution of rapid excavation engineering network under similar complex conditions.
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