Depth

(cm)

Cohesion C (kPa)

Internal Angle of Friction (φ)

Shear Strength

(kPa)

0 - 10

5.36

23.06

21.71

Machakos

10 - 20

7.69

27.00

29.60

20 - 30

6.30

27.39

28.07

0 - 10

7.35

27.39

30.02

Kitui

10 - 20

6.43

29.28

32.86

20 - 30

8.43

31.72

39.29