1.Forestry College,Shanxi Agricultural University,030801,Taigu,Shanxi;2.Soil and Water Conservation Bureau of Water Conservancy Department of Shanxi Province,030002,Taiyuan;3.Heilongjiang Soil and Water Conservation Research Institute,150400,Binxian,Heilongjiang:China
Abstract：This paper deals with the weathering gangue infiltration laws of four densities (1.20 g/cm3,1.30 g/cm3,1.45 g/cm3,1.55 g/cm3) and three kinds of mixed ratio(1∶0.5,1∶1.0,1∶2.0).The results showed that as the density increasing,infiltration rate of gangue decreases fast: the starting infiltration rate,constant infiltration rate,average infiltration rate of 1.20 g/cm3 are 2.21 times,1.92 times,2.30 times as large as those of 1.30 g/cm3 respectively,are 60.00 times,102.54 times,129.13 times as large as those of 1.55 g/cm3 respectively,and the relation between density and infiltration rate is the power function;As the mixed ratio increasing,infiltration rate of gangue decreases fast: the starting infiltration rate,constant infiltration rate,average infiltration rate of the mixed ratio(1∶0.5) are 1.05 times,1.23 times,1.42 times as large as those of the mixed ratio(1∶1.0) respectively,are 3.98 times,1.45 times,3.18 times as large as those of the mixed ratio(1∶2.0) respectively;Under the density of 1.20 g/cm3,1.30 g/cm3 and mixed ratio of 1∶0.5,1∶1.0,the ideal formula to express the process of infiltration is universal empirical formula and Kostiakov formula,under the density of 1.45 g/cm3,1.55 g/cm3 and the mixed ratio of 1∶2.0 the best formula is the universal empirical formula.
2008, Vol. 6 
