Study On Control Technology Of Dynamic Pressure Roadway Of Wuyang Coal 7603 Island Face

Base on Shanxi Lu'an Environmental Energy Development Co., Ltd. 7603 island face Wuyang mine roadway transportation engineering, using coal along the empty mechanics analysis the pressure distribution of the surface overlying rock islands,coming to 7603 transportation roadway in the high stress areas; base on radial displacement formula base on roadway, numerical analysis using Matlab software mapping analysis results affect surrounding rock deformation 7603 transportation roadway factors are two factors: roadway surrounding rock pressure and physical and mechanical parameters, and proposed 7603 transportation study Roadway two to help "translate" Contrast simulate large deformation scheme influencing factors. based on FLAC3 D establisheing numerical models, respectively, analog data systems analysis shows: Transportation deformation of roadway surrounding rock pressure increases and increases with decreasing transportation roadway surrounding rock deformation of physical and mechanical parameters increases. According to 7603 transportation roadway two sides large deformation theory and simulation analysis, combined with specific engineering 7603 transportation Roadway, proposed " bring the top and bottom,to help control the two sides," the supporting ideas, and design a six comparative simulation programs, through simulation comparison analysis of data obtained optimal roadway plan, closer of two sides only 295 mm, while the optimal solution has been mining face simulations 7603 transportation roadway two to help with the face amount closer close to gradually increase and eventually moved closer to about419 mm, meeting the needs of production safety. When the industrial practice, in 7603 the transport roadway excavation process, closer to the average amount of roadway between two closer to the amount of 346mm; Coal Mining process, two groups closer to about490 mm. Comprehensive data shows that: deformation and failure of effective control,ensuring normal production and using of the roadway for the island face mining roadway between two large deformation control technology has accumulated valuable experience.