Application of Self Forming Roadway Mining Technology Without Coal Pillars in Coal Mines
In response to the shortcomings of large deformation,high comprehensive mining cost,and large waste during coal mine underground comprehensive mining operations,a coal pillar free self forming roadway technology is proposed.The application of roof pre splitting and cutting design scheme,constant resistance large anchor support,and temporary roadway support scheme is analyzed.According to practical applications in coal mines,the new pillar free self forming roadway technology can achieve an annual cost savings of 1132.12 million yuan,effectively improving the efficiency and economy of underground comprehensive mining operations.
top cutting and pressure reliefno coal pillarautomatic lane formation
NETL
NSTL
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