顶板来压后工作面端头顶板的结构形式、稳定性及支护措施

THE STRUCTURE STABILITY AND SUPPORTTING MEASURES OF THE ROOF AT THE BOTH ENDS OF THE WORKING FACE AFTER WEIGHTING

本文在相似材料模拟实验及现场观察的基础上,就客观上存在的端头顶板结构——弧三角形悬板,运用板的极限分析方法,分析了它的稳定性,明确指出:在能够形成这一端头结构的采场条件下,端头顶板的稳定性好于工作面内的顶板,对于合理地进行顶板支护具有指导意义。

This paper analyses the stability of the roof at the both ends of the coalface, it is arc trianglc hanging plate after roof weighting abtained on the basis of similar material similation and practical olservation, by using limit analyic method of plate. It clearly points out that the stability of the roof at the both ends of coalface is better than that of the roof within working face under the condition of arc triangle haging plate to be formed. It is of significant for directing the rational roof support.