t（min）s（m）s’=(2h0-s)s
1.50.0250.999375
20.034 1.358844
30.048 1.917696
40.056 2.236864
50.063 2.516031
60.073 2.914671
80.082 3.273276
100.087 3.472431
150.095 3.790975
200.098 3.910396
300.101 4.029799
400.1015 4.04969775
600.101 4.029799
900.1015 4.04969775
1100.102 4.069596
1500.103 4.109391
2000.104 4.149184
3000.107 4.268551
4000.11 4.3879
5000.112 4.467456
7000.117 4.666311
9000.122 4.865116
12000.129 5.143359
读数：t=10，s’=1，1/u=4.5，W（u）=0.01
所以K=Q×W（u)/（2πs’）=300×0.01/（2π×1）=0.477m/d a=r2/（4tu）=502×4.5/（4×10）=281.25m2/d
u e=KM/a=0.477×20/281.25=0.034
0.1
1
10100100010000
t(min)