摘要
分析了托板作为弹性薄板的原由,应用弹性薄板理论,研究了覆岩中托板的存在与垮断的基本条件,以及托板的强度判别方法,建立了覆岩中托板的存在与失稳判别的基本公式和托板存在与失稳判别的基本方法,并找出了理论上的托板等效垮距与实际值之间的联系,对托板理论在实际中的广泛应用具有重要作用。
The paper analyzed the cause of the holding plate as the plastic plate. With the plastic plate theory, the paper studied the basic conditions of the plate existing and failure in the overlying strata and the distinguishing method of the holding plate intensity. The basic formula to distinguish the holding plate existing and instability in the overlying strata and the basic method to distinguish the holding plate existing and unstable were established. The relationship between the holding plate equivalent failure span and real value was found from the theory, which could have an important role to the holding plate theory in the wide practical application.
出处
《煤炭工程》
北大核心
2007年第11期91-93,共3页
Coal Engineering
基金
国家科技攻关课题:"中国自然灾害风险与区域安全性研究"(2004BA608B-03-03)
关键词
托板
弹性板
岩层移动
等效垮距
holding plate
plastic plate
strata movement
equivalent failure span
