"FISSURE TO REPRESENT LINE OF HOLES"--NUMERICAL METHODFOR SIMULATING THE DRAINAGE HOLE CURTAIN IN ROCK MASSES
"以缝代井列"-排水孔幕模拟方法探讨

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.