老顶的来压过程及其预报  

Weighting Process of Main Roof and its Forecasting

作　　者：窦林名[1] 岑传鸿[1] 

机构地区：[1]中国矿业大学采矿系

出　　处：《中国矿业大学学报》1992年第3期64-70,共7页Journal of China University of Mining & Technology

摘　　要：本文通过理论分析与现场实例分析,认为老顶来压是一个过程,它包括老顶的断裂下沉和台阶下沉两个主要阶段。在来压过程中,回采工作面的矿压显现特征量均呈“驼峰”型。因此,可采用矿压显现特征量的前一个峰值(断裂下沉)来预报后一个峰值(台阶下沉),以防止压垮性事故的发生。Based on theoretic analysis and in situ measurements, the authors obtained a conception that the weighting of main roof is a complete process, including two key periods, that is, the breaking convergence and the bench convergence periods. Moreover, in the weighting process of the main roof, the characteristics of ground pressure manifestation are all of 'camelback' form. Therefore, one can forecast the latter peak value of the characteristic of ground pressure manifestation(bench convergence) by means of the former peak value(break convergence) so as to prevent the coal face from damage due to bench convergence.

关 键 词：顶板 老顶 压力 来压过程 预报 

分 类 号：TD326[矿业工程—矿井建设]