Li Gang, Liang Bing, Li Fengyi. RESEARCH ON MECHANISM OF ROOF OF THICK SANDSTONE AND THIN BASE ROCK BREAK ABOVE SHALLOW COAL SEAMJ. CHINA MINING MAGAZINE, 2005, 14(8): 82-83.
Citation:
Li Gang, Liang Bing, Li Fengyi. RESEARCH ON MECHANISM OF ROOF OF THICK SANDSTONE AND THIN BASE ROCK BREAK ABOVE SHALLOW COAL SEAMJ. CHINA MINING MAGAZINE, 2005, 14(8): 82-83.
Li Gang, Liang Bing, Li Fengyi. RESEARCH ON MECHANISM OF ROOF OF THICK SANDSTONE AND THIN BASE ROCK BREAK ABOVE SHALLOW COAL SEAMJ. CHINA MINING MAGAZINE, 2005, 14(8): 82-83.
Citation:
Li Gang, Liang Bing, Li Fengyi. RESEARCH ON MECHANISM OF ROOF OF THICK SANDSTONE AND THIN BASE ROCK BREAK ABOVE SHALLOW COAL SEAMJ. CHINA MINING MAGAZINE, 2005, 14(8): 82-83.
RESEARCH ON MECHANISM OF ROOF OF THICK SANDSTONE AND THIN BASE ROCK BREAK ABOVE SHALLOW COAL SEAM
In this paper,based on physics resemble simulation and numerical simulation,grads-composite board mechanics model on overlying strata was obtained by studying shallower coal seam mining under thin base rock in SHENDONG GROUP.Periodic weighting was analysed by the bearing wedge model,simultaneity,the mechanics of first weighting and periodic weighting were expounded.
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