Through analog simulation tests,the article studies the effect of burial depth on overburden movement in fully mechanized top coal caving face of shallow overburden and thin bedrock. According to the study,the overburden forms a stable structure of cantilever beam + articulated rock beams + arch,under the conditions of shallow overburden and thin bedrock. With periodical unstability of articulated rock beams,the loose bed and earth surface will collapse after the working face as if being cut down in one who...
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