%0 Journal Article
%T LIMITATIONS OF STATIC LOAD THEORY IN ROCKBURST RESEARCH AND PRELIMINARY ANALYSIS ON DYNAMICS MECHANISM OF ROCKBURST<br>静荷载理论在岩爆研究中的局限性及岩爆岩石动力学机理的初步分析
%A Xu Zemin
%A Huang Runqiu
%A Luo Xingchun
%A Li Rui
%A Sun Jingyi
%A <br>徐则民
%A 黄润秋
%A 罗杏春
%A 李睿
%A 孙静怡
%J 岩石力学与工程学报
%D 2003
%I 
%X It is found out that the limitations of static load theory in rock burst research are apparent by ways of analyzing the ratio of maximum tangential stress at the opening to the unconfined compressive strength,the spatial distribution of rockburst events,the stability of surrounding rocks of tunnels excavated with TBM and the super-deep holes. To the tunnels excavated with drill and blast tunneling,rockburst should be the results of cracks propagating extensively in the twinkling of an eye after the surrounding rocks under the state of anisotropic stress are disturbed repeatedly by stress waves resulting from blasting,instant unloading and rock bursting. This may be summarized as dynamics mechanisms of rockburst. The types of stress waves resulting from the unloading disturbance in other blasting rounds are the same as those stemming from blast-loading disturbance,that is,P wave,S wave and Rayleigh wave. The disturbance of P wave and Rayleigh wave on surrounding rocks is apparent. The properties,distribution and attenuation of P wave and Rayleigh wave can reasonably explain the effect of geostress on rockburst and the spatial distribution of rockburst events.
%K rock mechanics
%K rockburst
%K static load theory
%K rock dynamics mechanism
%K unloading disturbance<br>岩石力学
%K 岩爆
%K 静荷载理论
%K 卸载扰动
%K 岩石动力学
%K 围岩
%K 卸载应力波
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=096E76817885709F&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=5D311CA918CA9A03&sid=EB4DE9DC132993F4&eid=D45398EB9ED445AA&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=14&reference_num=45