%0 Journal Article
%T STATISTICAL DAMAGE CONSTITUTIVE MODEL FOR ROCK AND BACK ANALYSIS OF ITS PARAMETERS<br>岩石统计损伤本构模型及其参数反演
%A LIU Qi-jian
%A YANG Lin-de
%A CAO Wen-gui
%A <br>刘齐建
%A 杨林德
%A 曹文贵
%J 岩石力学与工程学报
%D 2005
%I 
%X Based on random distribution of interior defect in rock,a statistical damage constitutive model for rock is developed by using the continuous strength theory and statistical theory. Failure criterion of rock,as the distribution variable of the micro-unit strength in the constitutive model,greatly affects stress-strain curve and the equivalent elastic modulus of rock,and it must be chosen carefully for specific rock. By using back analysis method,the statistical distribution parameters in the constitutive model are solved. The proposed model can consider the effect of stress states and reflect the behavior in which the complete stress-strain curve of rock varies with stress-strain state. Comparison of the proposed model and experimental results shows that the proposed model is verified and can be applied in practical engineering.
%K rock mechanics
%K rock
%K statistics
%K damage
%K constitutive model
%K back analysis<br>岩石力学
%K 岩石
%K 统计
%K 损伤
%K 本构模型
%K 反演
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=40E4B0F0B2F7EF04&yid=2DD7160C83D0ACED&vid=B91E8C6D6FE990DB&iid=E158A972A605785F&sid=984BD2F4D19B9D1C&eid=BA3451F2C9E4FB70&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=3&reference_num=13