Here with we have shared the usual range values of Safe Bearing Capacity of different type of soil.
Sl No. | Types of Rocks / Soils | Safe Bearing Capcity Kg/CM2 | Safe Bearing Capcity kN/M3 |
(a) | Rocks | ||
i | Rocks hard without lamination and defects, eg. Granite and dionite | ||
33 | 3236 | ||
i | Laminated rocks – eg. Sandstone and lime stone | 16.5 | 1618 |
iii | Residual deposits of shattered and broken bedrock | 9 | 883 |
iv | Soft Rock | 4.5 | 441 |
(b) | Non-Cohesive Soils | ||
i | Gravel, sand offering high resistance to penetration when excavated by tools | ||
4.5 | 441 | ||
i | Coarse sand, compact and dry | 4.5 | 441 |
iii | Medium sand, compact and dry | 4.5 | 441 |
iv | Fine sand, silt | 2.5 | 245 |
v | Loose gravel or sand gravel mixture dry | 1 | 98 |
vi | Fine sand, loose and dry | 1 | 98 |
(c) | Cohesive Soils | ||
i | Soft shale, hard clay in deep bed dry | 4.6 | 451 |
i | Medium clay, readily indented with a thumb nail | 2.5 | 245 |
iii | Moist clay and sand clay mixture with strong thumb pressure | 1.5 | 147 |
iv | Soft dry with moderate thumb pressure | 1 | 98 |
v | Very soft clay which can be penetrated | 0.5 | 49 |
vi | Black cotton soil or expensive clay in dry condition | No Generalized Value | No Generalized Value |
vii | Peat | No Generalized Value | No Generalized Value |
viii | Fills or made up ground | No Generalized Value | No Generalized Value |