Thermomechanical Response of Fluid Infiltrated Fissured Rocks

流体渗透裂隙岩石的热机械响应

• 批准号: 8415588
• 负责人: Elias Aifantis
• 金额: $ 12.9万
• 依托单位: Michigan Technological University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-02-01 至 1987-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8415588&HistoricalAwards=false
• 关键词: Thermomechanical; Response; Fluid; Infiltrated; Fissured

A previously developed theory of consolidation with double porosity, which unifies Biot's and Barenblatt's concepts, will be further examined to consider the effects of non-isothermal temperature distributions, preferred orientation of fissures, non-Darcean flow, and inelasticity of the matrix. Jointed rocks of the Coulomb-friction type will be considered and their response in the presence of fluid flow will be investigated. The rigid block method will be employed to validate the continuum predictions. Concepts from percolation theory, Voronoi tesselations, and averaging procedures will be employed and recently developed methods modeling the spatial evolution of general microstructures will be applied to the study of fissured rock problems. Emphasis will be put on the localization of microstructures, their relations to localization of damage and deformation, as well as the effect of fluid flow upon them. Both the theory and the theoretical predictions will be validated.

先前开发的双孔隙固结理论统一了 Biot 和 Barenblatt 的概念，将进一步研究以考虑非等温温度分布、裂缝的择优方向、非达尔西流和基质非弹性的影响。 将考虑库仑摩擦类型的节理岩石，并研究它们在存在流体流动时的响应。 将采用刚性块方法来验证连续体预测。 将采用渗流理论、Voronoi 曲面细分和平均程序的概念，并且最近开发的模拟一般微结构空间演化的方法将应用于裂隙岩石问题的研究。 重点将放在微观结构的定位、它们与局部损伤和变形的关系以及流体流动对它们的影响上。 理论和理论预测都将得到验证。