At a site, Static Cone Penetration Test was carried out. The measured point (tip) resistance qc was 1000 kPa at a certain depth. The friction ratio (fr) was estimated as 1% at the same depth.
The value of sleeve (side) friction (in kPa) at that depth was __________. (in integer)
The correct match between the physical states of the soils given in Group-I and the governing conditions given in Group-II is
| Group-I | Group-II | ||
|---|---|---|---|
| 1. | normally consolidated soil. | P. | sensitivity > 16 |
| 2. | quick clay | Q. | dilation angle = 0 |
| 3. | sand in critical state. | R. | liquid limit > 50 |
| 4. | clay of high plasticity. | S. | over consolidation ratio = 1 |
As per Rankine's theory of earth pressure, the inclination of failure planes is $$\left( {45 + {\phi \over 2}} \right)^\circ $$ with respect to the direction of the minor principal stress.
The above statement is correct for which one of the following options?
A square concrete pile of 10 m length is driven into a deep layer of uniform homogenous clay. Average unconfined compressive strength of the clay, determined through laboratory tests on undisturbed samples extracted from the clay layer, is 100 kPa. If the ultimate compressive load capacity of the driven pile is 632 kN, the required width of the pile is __________ mm. (in integer)
Bearing capacity factor Nc = 9; adhesion factor $$\alpha$$ = 0.7)