%0 Journal Article
%T NON-LINEAR CREEP MODEL AND STABILITY ANALYSIS OF ROCK<br>岩石试件非线性蠕变模型及其稳定性分析
%A Wang Laigui
%A He Feng
%A Liu Xiangfeng
%A Yu Yongjiang
%A <br>王来贵
%A 何峰
%A 刘向峰
%A 于永江
%J 岩石力学与工程学报
%D 2004
%I 
%X Based on the modified elastic and visco-elasto-plastic model,the corresponding relationship of complete rock stress-strain curve and creep equation parameters is utilized,and a creep model with non-linear parameters is set up. By analyzing non-linear creep model and the creep curve,in the local scope,non-linear creep question is transfered into linear one,and the stability condition of the modified model is obtained,with which the three stages of rock sample creep,especially the non-linear accelerating creep stage can be described clearly. Meantime,the creep stability criteria of rock sample,analytic expressions of the creep deformation,the creep speed and the creep acceleration are given.
%K rock mechanics
%K non-linear creep
%K stability
%K creep instability<br>岩石力学
%K 非线性蠕变
%K 稳定性
%K 蠕变失稳
%K 应变曲线
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=697FEE40481CB410&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=F3090AE9B60B7ED1&sid=FFC2683A1E8523F1&eid=78FA856A8BE9CAB3&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=37&reference_num=12