摘要
工作面跨采时,运输大巷受到一次甚至多次采动压力影响,变形破坏严重。为确保在受采动影响时巷道变形保持在可控范围内,必须根据巷道破坏特点对其进行预加固,并实时进行矿压观测,总结巷道的变形机理和破坏规律,找出适合不同岩性特点的跨采巷道岩柱宽度,为以后跨采巷道施工设计提供理论依据。
Affected by the pressure of mining once or several times in the period of over-the-roadway extraction the main haulage roadway was severely deformed.According to the characteristics of roadway damage,the roadway must be pre-reinforced to make its deformation be in a controllable scope.The pressure observation should be carried out timely,which is helpful to summary the deformation mechanism and failure laws of the roadway,and to determine the suitable rock pillar dimensions in over-the-roadway extraction under different lithologic characteristics.All this provide theoretical basis for the design of over-the-roadway extraction face in future.
出处
《中州煤炭》
2011年第12期1-4,共4页
Zhongzhou Coal
关键词
跨采巷道
矿压观测
破坏机理
over-the-roadway extraction roadway
pressure observation
failure mechanism
