單項選擇題
壩基由三層水平土層構(gòu)成,厚度分別為8m、5m、7m,各土層垂直向和水平向的滲透系數(shù)分別為:k1V=0.01m/s、k1H=0.04m/s;k2V=0.02m/s、k2H=0.05m/s;k3V=0.03m/s、k3H=0.09m/s。問垂直滲流和水平滲流時的等效滲透系數(shù)最接近下列哪個選項的數(shù)值()
A.kV=0.0734m/s、kH=0.1562m/s
B.kV=0.0008m/s、kH=0.0006m/s
C.kV=0.0156m/s、kH=0.06m/s
D.kV=0.0087m/s、kH=0.06m/s