硬煤裂隙能量补偿原理与应用  

THE ENERGY COMPENSATION PRINCIPLE OF HARD COAL CRACK AND ITS APPLICATIONS

作　　者：邓广哲[1] 

机构地区：[1]西安矿业学院矿山压力研究所,西安710054

出　　处：《岩石力学与工程学报》2000年第4期440-443,共4页Chinese Journal of Rock Mechanics and Engineering

基　　金：霍英东教育基金会资助!项目 (710 76 )

摘　　要：针对硬煤顶煤冒放性问题 ,从理论上系统分析了顶煤破坏裂缝发展、传播条件 ,阐明了为提高顶煤冒放性 ,采用预松动措施促进煤体裂隙扩展能量补偿的设计原理和参数。通过两种实例分析 ,说明了能量补偿原理的应用效果和前景。The development and propagation conditions of top coal damage crack are systematically analysed in theory. The design principle and parameters of prerelaxation are used to promote the energy compensation for fissure extension in order to improve the character of top coal fall. Finally, the application effects and prospects of energy compensation principle are illustrated with two practical examples.

关 键 词：坚硬顶煤 冒放性 裂隙扩展 能量补偿 

分 类 号：TD313[矿业工程—矿井建设] TD823.49