摘要
研究岩石破坏过程中的损伤演化规律以及与之相伴而生的渗透性变化规律,采用应变主轴、损伤主轴和附加渗透主轴一致的原则,建立了基于应变-损伤-附加渗透性、反映岩石强度变化非线性特征的损伤演化模型。该模型使得耦合计算过程物理意义清晰明了,并准确表达了耦合过程的非线性关系。
The damage evolution laws of rock during the failure process as well as the relevant variation laws of permeability were studied.A damage evolution model reflecting the non-linear variation characteristics of rock strength was established based on the strain-damage-additional permeability according to the principle of the same principal axis of strain,damage and additional permeability.The proposed model makes the physical meaning of coupling calculation process clear and exactly expresses the non-linear relation of coupling process.
出处
《水利水电科技进展》
CSCD
北大核心
2010年第6期58-62,共5页
Advances in Science and Technology of Water Resources
基金
国家自然科学重点基金(40772184)
国家高技术研究发展计划(863计划)(2007AA11Z108)
关键词
岩石损伤
渗透性
渗流-应力耦合模型
地下水迁移
rock damage
permeability
permeability-stress coupling model
groundwater migration
