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

[Dnyan Deshmukh]

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

(a) 1 to 1.5 m

(b) 1.5 to 3.0 m

(c) 3.0 to 5 m

(d) 4 to 7 m.

The correct Answer Is
(a) 1 to 1.5 m