阻隔墙中考虑半透膜效应的污染物迁移数值解

邓圣义,周永伟,蒲诃夫,李育超,闵明

Numerical solution for contaminant transport in cutoff wall considering semipermeable membrane behavior

Shengyi DENG,Yongwei ZHOU,Hefu PU,Yuchao LI,Ming MIN

表 2 污染物的迁移参数和阻隔墙-含水层系统的材料参数

Tab.2 Transport parameter of contaminant and material parameter of cutoff wall-aquifer system

结构 k /(10−7 m·s−1) τ vs /(10−9 m·s−1) α/m Kd/(mL·g−1) ρs/(g·cm−3) D0/(m2·s−1) γw /(kN·m−3) t1/2 /a 土-膨润土阻隔墙 0.01[3] 0.3[5] 2.50 0.006 3.89[26] 1.7[27] 9.45×10−10 [28] 10 +∞ 含水层 1000[4] 0.5[5] 2.22 0.1 0[4] 1.55[27] 9.45×10−10 [28] 10 +∞