中南大学学报（自然科学版）2018，Vol.49Issue(2)：401-406,6.DOI:10.11817/j.issn.1672-7207.2018.02.019
考虑节理影响的岩体非线性流变模型
Nonlinear rheological model of rock considering the effects of joints
摘要
Abstract
To study the whole creep process of jointed rock, nonlinear viscous element and joint fissures plastic body were introduced, and then combined with classical Burgers model in series to gain a new composite creep model. 1D and 3D creep constitutive equation of the composite creep model were deduced. By using the composite creep model and the classical Burgers model to fit with the whole process of rock specimen creep curve, creep parameters of the models were derived. The results show that the composite creep model produces better fitting results than the classical Burgers model. It can not only fully reflect the early and steady creep process, but also well present the accelerating creep process of the rock specimen. Meanwhile, it can also reflect the influence of joint fissures on creep.关键词
岩石力学/复合流变模型/加速蠕变/节理裂隙/蠕变参数Key words
rock mechanics/the composite creep model/accelerating creep/joint fissures/creep parameters分类
建筑与水利引用本文复制引用
曹平,黄磊,陈瑜,周科平,邓红卫..考虑节理影响的岩体非线性流变模型[J].中南大学学报（自然科学版）,2018,49(2):401-406,6.基金项目
国家自然科学基金资助项目(11772358,51604299,51774323,51274249) （11772358,51604299,51774323,51274249）
湖南省研究生科研创新项目(CX2012B069) （CX2012B069）
中国博士后科学基金资助项目(2016M600636) （2016M600636）
中南大学博士后科学基金资助项目(2017) （2017）
国家重点研发计划项目(2016YFC0600706) (Projects(11772358, 51604299, 51774323, 51274249) supported by the National Natural Science Foundation of China （2016YFC0600706）
Project(CX2012B069) supported by the Postgraduate Innovative Research Project of Hunan Province （CX2012B069）
Project(2016M600636) supported by China Postdoctoral Science Foundation （2016M600636）
Project(2017) supported by Central South University Postdoctoral Science Foundation （2017）
Project (2016YFC0600706) supported by the National key Research and Development Program) （2016YFC0600706）
