摘要
建立了浅埋煤层采场老顶周期来压的“短砌体梁”和“台阶岩梁”结构模型， 分析了顶板结构的稳定性， 揭示了工作面来压明显和顶板台阶下沉的机理是顶板结构滑落失稳， 给出了维持顶板稳定的支护力计算公式， 为浅埋煤层顶板控制定量化分析提供了理论基础．
The “short block voussoir beam” and the “step voussoir beam” structure model during main roof periodic weighting are advanced Through stability analyzing, it is revealed that the intense roof weighting and roof step in shallow seam longwall mining are caused by roof key block sliding, and the resistance force to control roof sliding is put forward Thus, the base of roof control theory in shallow seam is established
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1999年第6期581-585,共5页
Journal of China Coal Society
基金
陕西省自然科学基金!项目(98D02)
煤炭高校青年科学基金!项目(97 - 031)
