kPa
psi
180
1200
December
160
March
1000
140
120
800
100
600
80
60
400
40
30 psi
200
limit
20
0
0
0
5
10
15
20
25
30
35
40
45
50
CLEGG Hammer Sampling Stations
a. Site 1.
kPa
psi
700
4500
December
600
March
4000
3500
500
3000
400
2500
300
2000
1500
200
1000
100
500
0
0
0
5
10
15
20
25
30
35
40
45
50
CLEGG Hammer Sampling Stations
b. Site 2.
kPa
psi
300
2000
December
March
250
1500
200
150
1000
100
500
50
0
0
0
5
10
15
20
25
30
35
40
45
50
CLEGG Hammer Sampling Stations
c. Site 3.
Figure 12. Variability of unconfined compressive strength for December and March Clegg data.
8
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