%0 Journal Article
%T THE ENERGY COMPENSATION PRINCIPLE OF HARD COAL CRACK AND ITS APPLICATIONS<br>硬煤裂隙能量补偿原理与应用
%A Deng Guangzhe
%A <br>邓广哲
%J 岩石力学与工程学报
%D 2000
%I 
%X 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.
%K top hard coal
%K character of top
%K coal
%K fall
%K fissure extension
%K rate of recovery<br>坚硬顶煤
%K 冒放性
%K 裂隙扩展
%K 能量补偿
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=6E215CD3294701E3&yid=9806D0D4EAA9BED3&vid=2A8D03AD8076A2E3&iid=E158A972A605785F&sid=78976D931AD1540F&eid=5824536C90612D67&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=2&reference_num=8