Location and shear parameters

Ajalli Sandstones (AS)

(60 - 90 cm depth)

Upper Coal Measures (UCM)

(60 - 90cm depth)

Lower Coal Measures (LCM)

(60 - 90 cm depth)

Location

Ankpa

Dekina

Owukpa

Φ

37.20˚

22.36˚

19.23

C (KN/m2)

24.22

74.52

110.34

Shear strength,

S, value (KN/m2)

196.23

314.74

321.72