考虑水流温度影响的三维岩体裂隙网络非稳定渗流场数值分析  

Numerical analysis of unsteady seepage field in fracture network of 3-D rock mass of considering effect of flow temperature

作　　者：许增光[1] 杨雪敏[1] 柴军瑞[1,2] 

机构地区：[1]西安理工大学,陕西省西北旱区生态水利工程重点实验室,陕西西安710048 [2]三峡大学水利与环境学院,湖北宜昌443002

出　　处：《水资源与水工程学报》2014年第2期42-45,共4页Journal of Water Resources and Water Engineering

基　　金：陕西省重点科技创新团队(2013KCT-015);陕西省自然科学基金项目(2013JQ7010);中国博士后科学基金(2013M540765);中央财政支持地方高校发展专项资金特色重点学科项目资助(106-00X101;106-5X1205)

摘　　要：水流温度对裂隙岩体中渗流场分布规律的影响是岩体水力学研究的热点问题。在分析水流温度对裂隙水流影响机理的基础上,建立了考虑水流温度影响的岩体裂隙渗流场数学模型,采用有限元法对其进行数值求解。研究结果表明:考虑水流温度影响较不考虑水流温度影响的渗流场水头值普遍偏高;水流温度对渗透系数的影响在水流温度影响渗流场分布的过程中起主导作用;裂隙宽度越大,水流温度对裂隙渗流场的影响越明显。The influence of water temperature on the distribution of seepage field in fractured rock mass is a hot issue of research on rock mass hydraulics problems. On the analysis basis of effect of water temperature on fissure water flow mechanism,the paper established the mathematical model of rock fracture seepage field considering the influence of water temperature and solved numerically by using the finite element method. The results show that the value of water head by considering the influence of water temperature is higher than that of not considering the influence of water temperature; the influence of water temperature on hydraulic conductivity plays a leading role in the process of water temperature; the larger the fissure width,the more obvious influence of water temperature on fracture seepage field.

关 键 词：裂隙网络 岩体 渗流场 温度 数值分析 

分 类 号：TV139.1[水利工程—水力学及河流动力学]