Research Of Mining Roadway Supporting Technology In Nanliang Coal Mine

The development of roadway surrounding rock control technology is relatively mature now. With the increase of mining area, some roadway surrounding rock emerged large deformation or damage influenced by mining, which would seriously affect safe and efficient mining of coal resources. If there was no basis for support scheme selection and support parameters design, on the one hand it could not reach ideal supporting effect and surrounding rock was still difficult to achieve stable, the other hand it could bring about supporting material profligacy and increase support costs. Domestic and foreign people had done a lot of research for bolting and summed up much experience from practice. But when the coal seam occurrence conditions and mining technical condition were quite different, the applicability of much experience and theory needed us to re-examine based on actual situation.The paper based on Nanliang coal current situation, through researched roadway loose range, convergence deformation, bolting state, rock mechanics parameters and rock composition of Nanliang coal fully-mechanized working face crossheading, then applied the method of theoretical analysis and numerical simulation, and based on the analysis of roadway stability, and proposed rational support program and parameter, which overcomed the blindness of existing support way and parameters selection in Nanliang coal.Studies had shown that the paper proposed mining roadway support program against different surrounding rock conditions of Nanliang coal, which solved on-site supporting problem well, at the same time, this paper could provide reference for the support program and parameters selection of mining roadway in other similar mine field.