Numerical simulation and experimental research of surrounding rock deformation of floor roadway under short-distance coal seam group combined mining
Tóm tắt
According to the influence of the combination of short-distance coal seam group on mining roadway, using numerical simulation software FLAC2D to draw the abutment pressure distribution ahead the working face and the area of influence in fully-mechanized mining conditions, the variation rules of surrounding rock supporting pressure of floor roadway and the deformation rules were summarized. GYS-300 anchor dynamometer was used to measure the roadway surface displacement, and the conclusions of numerical simulation were verified.
Tài liệu tham khảo
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