%0 Journal Article
%T TIME-STRESS HISTORY ON INTERFACE BETWEEN CRACKED AND UNCRACKED ZONES UNDER ROCK BLASTING<br>岩石爆破破坏界面上的应力时程研究
%A Chen Shihai
%A Wang Mingyang
%A Zhao Yuetang
%A Qian Qihu
%A <br>陈士海
%A 王明洋
%A 赵跃堂
%A 钱七虎
%J 岩石力学与工程学报
%D 2003
%I 
%X Applying the theory of cavity expansion,the characteristics of cracked zones under rock blasting are studied according to the behavior of blasting-induced deformation and damage of rock. The expansion and squeeze course of cavity wall under the explosion gas,the crack limits and the time history of stress on the interface between cracked and the uncracked zones are presented. The radium of blasting cavity,stress peak value and action time of stress waves are validated by the theory of classical explosion mechanics and the way of curve regression. The results of numerical calculation analysis keep good consistence with that given by traditional mechanics.
%K rock mechanics
%K distinction of blasting crack zones
%K time history of stress
%K explosion mechanics
%K cavity expansion
%K curve regression<br>岩石爆破
%K 岩石力学
%K 应力时程
%K 爆炸力学
%K 空腔膨胀
%K 曲线拟合
%K 应力波
%K 应力峰值
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=61DE0A7FB9F64CC5&yid=D43C4A19B2EE3C0A&vid=BC12EA701C895178&iid=708DD6B15D2464E8&sid=29A58EDE5D324924&eid=DC8E8C328836185A&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=9&reference_num=10