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    LI Gao-jian. Overburden Rock Movement Laws of Lower Thick Protecting Stratum Mining Among Coal Seam Groups[J]. Safety in Coal Mines, 2013, 44(9): 64-66.
    Citation: LI Gao-jian. Overburden Rock Movement Laws of Lower Thick Protecting Stratum Mining Among Coal Seam Groups[J]. Safety in Coal Mines, 2013, 44(9): 64-66.
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    Overburden Rock Movement Laws of Lower Thick Protecting Stratum Mining Among Coal Seam Groups

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    • Published Date: September 19, 2013
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      • Abstract
    • In order to study the effect of overburden rock movement laws on the stability of 3-1 lower coal seam after that 4-1 thick coal seam is mined in advance as protecting stratum, UDEC discrete element numerical software is used to simulate the impact degree of the face advance on the roof and 3-1 lower coal seam. According to the engineering practice, it shows that the mining in lower thick seam has a great influence on gas release and roof pressure relief.
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      • References (8)
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