摘要
基于离散裂隙网络模型和裂隙介质管道流模型,在室内建立一套裂隙介质管道网络试验装置,并开展裂隙渗流和溶质运移试验.结果表明,在相同定水头的饱和渗流条件下,不同几何参数组成的裂隙网络的渗流流量及溶质通量存在较大差异,表现出流量和溶质运移通量与裂隙管网物理模型的有效空隙率、裂隙密度、裂隙产状、进出口数量等均存在非常显著的相关性.经进一步回归分析获知,流量与有效空隙率及裂隙密度、溶质通量与流量及裂隙密度之间皆存在较好的统计关系.
It is important to understand groundwater flow and solute transport in fractured rocks for establishing appropriate groundwater protection policies and implementing effectively protection measures. Based on the discrete fracture network model and fracture network pipe flow model, a representative physical model was built and a set of the laboratory experiments were carried out in order to investigate the correlations of flow discharge and solute transport mass with fracture geometry parameters. On the basis of the correlation analyses and regression analyses, we obtained the corresponding regression trends and statistical relationships.
出处
《中国科学院大学学报（中英文）》
CAS
CSCD
北大核心
2014年第1期54-60,共7页
Journal of University of Chinese Academy of Sciences
基金
国家自然科学基金(40972166)
国家重点基础研究发展计划(973)项目(2010CB428804)
国家高技术研究发展计划(863)项目(2011AA050105)资助
关键词
裂隙
管道网络
物理模型
模拟试验
水流与溶质运移
fracture
pipe network
physical model
simulation experiment
flow and solute transport
