A study of coefficient of permeability as a quantitative classification index for unloaded zones of rockmass

Coefficient of permeability,to some extent,can represent the development degree of joints,joint openness and unloaded degree,and is often taken as one of the quantitative classification indexes for unloaded zones of rockmass.Due to nonlinear characteristic of unloaded rockmass,difference in research methods and difference in background conditions,each sticks to his argument about the partition limit of water coefficient of permeability adopted by each researcher for the unloaded zones.Taking con...