The approximate depth of a vertical open excavation without bracing and spalling in stiff clays is about -

[Dnyan Deshmukh]

The approximate depth of a vertical open excavation without bracing and spalling in stiff clays is about -

(a) 1 to 1.5 m

(b) 1.5 to 3.0m

(c) 3.0 to 5 m

(d) 5 to 7 m.

The correct Answer Is
(d) 5 to 7 m