摘要
在单个排水孔模拟方法即“以管代孔”法的基础上 ,将岩体中排水井列概化为一条等效窄缝 ,依据流量和水头等价原则 ,确定出等效窄缝的各向异性渗透系数与排水孔间距和岩体排水量之间的对应关系 ,进而提出了“以缝代井列”模拟岩体排水孔幕的新方法。该方法将等效窄缝作为岩体中一级导水结构单元 ,能模拟不同条件下的排水效果 ,既能反映实际条件 ,又便于工程应用 。
On the basis of the method for simulating single drainage hole, which is so called 'pipe to represent hole', a line of drainage holes in rock masses is described as an equivalent narrow fissure. The corresponding relationship between the coefficient of anisotropy permeability of the equivalent narrow fissure and the space of drainage holes is determined by the equivalent principle for water head and flow quantity, and further a new method is put forward for simulating a line of drainage holes in the rock masses. This method is named as 'fissure to represent a line of holes'. By using the equivalent narrow fissure as strong permeability element, this method can simulate the drainage function of holes in different conditions. Such method not only can describe real circumstances of drainage in rock masses, but also is easy to be used for engineering. So it is a practical method for simulating the drainage system in rock masses.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第1期98-101,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
排水井列
岩体
等效裂缝
数值方法
seepage flow, a line of drainage holes, rock masses, equivalent fissure, numerical method
