370 工程科学学报，第43卷，第3期 250 Unclassified waste rock 200 Top of the packing material Middle 150 Weathered layer Bottom Initial groundwater level 100 Bedrock 50 98032 图51-1计算剖面图（单位：m) Fig.5 Sectional drawing of the 1-1 profile (Unit:m) 250 200 Unclassified waste rock Weathered layer Top of the packing material Middle 100 Bottom Initial groundwater level 50 Bedrock 1073.8 图62-2计算剖面图（单位：m) Fig.6 Sectional drawing of a 2-2 profile (Unit:m) 表2高台阶排土场岩土力学参数 Table 2 Mechanical parameters of the high dump Natural unit weight, Saturated unit weight, Cohesion, Permeability Rock-soil layer Water-bearing Intemal friction angle, y/(kN.m) 7kN-m) condition C/kPa coefficient,/m's) Unclassified waste Saturated 42.4 30.3 19.20 20.50 3.50×10-3 rock Natural 63.0 35.6 Top of the packing Saturated 31.7 27.8 18.60 19.70 2.50×103 material Natural 55.0 33.0 Middle of the packing Saturated 39.0 27.0 19.40 20.70 4.70×103 material Natural 65.0 36.0 Bottom of the packing Saturated 44.7 32.3 19.80 21.00 5.00×103 material Natural 68.0 372 Weathered layer 20.00 21.50 Saturated 55.0 31.7 5.20×10-7 Bedrock 23.50 24.50 Natural 350.0 40.0 1.20×10- 10r 0.40 Estimation method of Fredlund-Xing 0.38--- -0 0.36 o. 10- 0.32 Estimation method of particle diameters 0.30 Bottom of the packing material 0 106 -Unclassified waste rock 0.28 Bottom of the packing material -Middle of the packing material -o-Unclassitied waste rock Top of the packing material 0.26 Middle of the packing material 000… Top of the packing material 10 102 101 10 101 102 103 102 10 10° 10 102 103 Pore water pressure/kPa Pore water pressure/kPa 图7渗透系数曲线 图8土水特征曲线 Fig.7 Permeability coefficient curves Fig.8 Soil-water characteristic curves10−2 10−1 100 101 102 103 Pore water pressure/kPa 0.26 0.28 0.30 0.32 0.34 0.36 0.38 0.40 Volumetric water content/(m·s−1 ) Bottom of the packing material Unclassified waste rock Middle of the packing material Top of the packing material Estimation method of particle diameters 图 8    土水特征曲线 Fig.8    Soil–water characteristic curves 表 2 高台阶排土场岩土力学参数 Table 2 Mechanical parameters of the high dump Rock–soil layer Natural unit weight, γ/(kN·m−3) Saturated unit weight, γs/(kN·m−3) Water-bearing condition Cohesion, C/kPa Internal friction angle, Φ/(º) Permeability coefficient, k/(m·s−1) Unclassified waste rock 19.20 20.50 Saturated 42.4 30.3 3.50 × 10−3 Natural 63.0 35.6 Top of the packing material 18.60 19.70 Saturated 31.7 27.8 2.50 × 10−3 Natural 55.0 33.0 Middle of the packing material 19.40 20.70 Saturated 39.0 27.0 4.70 × 10−3 Natural 65.0 36.0 Bottom of the packing material 19.80 21.00 Saturated 44.7 32.3 5.00 × 10−3 Natural 68.0 37.2 Weathered layer 20.00 21.50 Saturated 55.0 31.7 5.20 × 10−7 Bedrock 23.50 24.50 Natural 350.0 40.0 1.20 × 10−8 980.52 0 50 100 150 200 250 90 76.64 200 250 Weathered layer Top of the packing material Unclassified waste rock Initial groundwater level Middle Bottom Bedrock 图 5    1-1 计算剖面图 (单位：m) Fig.5    Sectional drawing of the 1-1 profile (Unit: m) 1073.8 0 50 100 150 200 250 76.64 223 250 Weathered layer Top of the packing material Unclassified waste rock Initial groundwater level Middle Bottom Bedrock 图 6    2-2 计算剖面图 (单位：m) Fig.6    Sectional drawing of a 2-2 profile (Unit: m) 10−2 10−1 100 101 102 103 10−7 10−6 10−5 10−4 10−3 10−2 Permeability coefficient/(m·s−1 ) Pore water pressure/kPa Bottom of the packing material Unclassified waste rock Middle of the packing material Top of the packing material Estimation method of Fredlund−Xing 图 7    渗透系数曲线 Fig.7    Permeability coefficient curves · 370 · 工程科学学报，第 43 卷，第 3 期