Development trends in surrounding rock control technologies for non-pillar coal mining
KANG Hongpu
WANG Dongpan
LIU Yuedong
Abstract：1 Research Status
Coal pillar-free mining is a coal mining method that eliminates the protective coal pillars through reasonable development layout, coal mining face and roadway layout, and mining sequence, which is in line with the concept of green mining. Its main advantages include: reducing the amount of excavation engineering, lowering the excavation rate, alleviating the contradiction between mining and excavation; reducing coal pillar loss and improving the recovery rate of coal resources; eliminating disasters such as large deformation of roadways caused by stress concentration in coal pillars, coal and gas outburst, and rock burst; improving the ventilation system of the coal mining face, which is beneficial to solving the gas problem.
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Publication Date：2025-02-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1-5 )