Krukovsky A. Parameters and coalmine roadways roof conditions foundation for anchor bolting technology

The skill work is devoted to geomechanical processes investigations of strata behaviour around coalmine roadways supported by high bearing capacity and durability roofbolts. Surrounding rock conditions for rock strengthening zones caused with rebar bolt induce tension and its influences on block destruction process are presented. Based on nonlinear space rock mechanic task the mathematical model for coalmine roadways with roof bolting is developed. The numerical method of finite elements to a solution of problem is applied. Developed algorithm and model allowed conducting manyfactors numerical relationship investigations on roof stability roadway with anchor bolting technology. Obtained parameter relationships permitted to decrease negative strata pressure influence near mine roadway. New kind of mine working support is proposed. Scientific results in coalmine standards and department documents are presented.