大面积顶板来压动力表征及预测方法

Dynamic Features and Prediction Method of Large Roof Pressurized

详尽分析了近年来一些矿区出现的采场大面积顶板来压造成的动力灾害及其构成要素的时空关系。针对工作面遭遇特定地质构造时岩层失稳的动力表征分析,建立了大面积顶板来压逻辑关系成因图,提出应用岩体的微震和声发射机理的方法进行预测的关键技术,以提高岩体动力异常区域的预测预报效果。

The paper in detail analyzed and stated the dynamic disasters caused by the large roof pressurization in the coal mining faces occurred in some mines in the recent years and the time and space relationship of the main factors to cause the dynamic disasters. According to the analysis on the dynamic features of the strata instability when the coal mining face met the special geological structures, the paper established the logical relationship cause drawing of the large roof pressurization and provided the application of the rock micro seismic and sonic transmitting mechanism method for the prediction key technologies in order to improve the prediction and forecast results of the rock dynamic abnormal area.