摘要
依据渗流基本原理 ,提出了“以管代孔”模拟岩体排水孔的新方法 ,将排水孔作为强渗透性能的导水管单元反映在渗透介质结构中 ,按流量和水头等价原则确定的单孔等效渗透系数体现了排水孔性能与孔距及岩体渗透性之间的关系 ,能模拟不同条件下的排水效果 。
According to the theory of seepage flow, a new method for simulating the action of the drainage holes in rock-masses is given, which is called as 'pipe to represent hole'. The drainage hole is simulated by conductive pipe as a type of the components with strong permeability in permeable medium. The equivalent permeability coefficient of the drainage hole is determined on the basis of the equivalence principle for water head and flow quantity, and it can show the relationship among the drainage property, hole space, and permeability of rock-masses. This method can simulate the drainage effect of holes in different conditions, which will provide a practical method for optimal design of the drainage system in rock-masses.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2001年第3期346-349,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
国家自然科学基金资助项目 (594790 1 0
597790 1 4 )
关键词
渗流
排水孔
岩体
数值方法
Computer simulation
Drainage
Hydraulic conductivity
Mechanical permeability
Pipe flow
Seepage
