在支架围岩相互作用过程中，支架顶梁有一个先承载后卸载的过程。
In the interaction process of surround rocks and support, the roof beam suffers from loading and unloading experience.
本文的所得结论对分析浅埋煤层的强烈滑落失稳机理、进一步研究采场“支架—围岩”关系、建立浅埋煤层动态顶板结构理论具有重要的理论意义。
It has important theory meaning of this research to analyze the mechanism of sliding instability, study the relation of "support -rock" and establish dynamic roof structure theory.
研究支架—围岩的相互作用极为重要。
It becomes very important to study the inter-action of support and surrounding rock.
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