| 刘世君,徐卫亚,邵建富.岩石粘弹性模型辨识及参数反演[J].水利学报,2002,33(6):0101-0106 |
| 岩石粘弹性模型辨识及参数反演 |
| Identification of rock viscoelastic model and back analysis of mechanical parameters |
| |
| DOI： |
| 中文关键词: 粘弹性本构模型 蠕变柔量 两步反分析法 反问题 岩石 |
| 英文关键词: viscoelastic constitutive model creep compliance back analysis inverse problem rock |
| 基金项目: |
|
| 摘要点击次数: 2880 |
| 全文下载次数: 144 |
| 中文摘要: |
| 本文回顾了常用的几种岩石粘弹性本构模型，依据蠕变柔量的概念，用位移和蠕变柔量两步反分析法从粘弹性本构模型的一般表达式中辨识出岩石的本构模型.先由相应的位移实测值用解析法反演岩石的蠕变柔量，再由岩石的蠕变柔量运用非线性优化技术辨识出岩石本构模型表达式，最后进一步由模型参数反算出岩体的粘弹性参数.文中最后给出了工程实例. |
| 英文摘要: |
| Based on the concept of creep complicance, the rock constitutive model is identified from the general expression of viscoelastic constitutive model using the back analysis of displacement and creep compliance. The creep compliance is obtained from the back analysis which is based on the measured displacement. The nonlinear technique is applied to identify the constitutive expression of rock. The rock viscoelastic parameters is developed. An engineering case study is presented in detoil. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |