Soil Mechanics and Foundation Sheet 30

As per Terzaghi's equation, the bearing capacity of strip footing resting on cohesive soil $\left(c=10 kN/m^2\right)$ for unit depth and unit width $\left(assume N_c as 5.7\right)$ is

Given that $c=2 t/m^2, \varphi =0° and y=2 t/m^3$, the depth of tension crack developing in a cohesive soil backfill would be

If an infinite slope of clay at a depth 5 m has cohesion of $1 t/m^2$ and unit wt of $2 t/m^2$, then the stability number will be

In a direct shear test, the shear stress and normal stress on a dry sand sample at failure are $0.6 kg/c{m}^2 and 1 kg/c{m}^2$ respectively. The angle of internal friction of the sand will be nearly

If an unconfined compressive strength of $4 kg/c{m}^2$ in the natural state of clay reduces by four times in the remoulded state, then its sensitivity will be

Minimum centre to centre spacing of friction piles of diameter (D) as per BIS code is

In a Mohr's diagram, a point above Mohr's envelope indicates

Shear failure of soils takes place when

A soil has mass unit weight r, water content w (as ratio). The specific gravity of soil solids = G, unit weight of water =$r_w$, 'S', the degree of saturation of the soil is given by

The configuration of flow nets depends upon