What are Bearing Capacity Values of Different Types of Soil?

Question

What are the bearing capacity values of different types of soils such as clay, sand, gravel, rocks etc.?

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Gopal Mishra 1 year 6 Answers 6194 views 0

Answers ( 6 )

  1. Following table shows maximum bearing capacity values of different types of soils:

    Types of SoilBearing Capacity (Kg/m2)Bearing Capacity (kN/m2)
    Soft, wet clay or muddy clay500050
    Soft clay10000100
    Fine, loose and dry sand10000100
    Black cotton soil15000150
    Moist clay and sand clay Mixture15000150
    Loose gravel25000250
    Medium clay25000250
    Medium, compact and dry sand25000250
    Compact clay45000450
    Compact sand45000450
    Compact gravel45000450
    Soft rocks45000450
    Laminated rock such as sand stone & Lime stone1650001650
    Hard rocks such as granite, diorite, trap3300003300

    Bearing capacity of soil is the maximum load per unit area. This is the ultimate bearing capacity of soil shown in table. Dividing the ultimate soil bearing capacity by a safety factor we get the maximum safe bearing capacity of soil for design of foundations.

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    • Dear Gopal, thankyou for this informative. I have an additional query. How does one deduce the soil type (among the above mentioned types) by visual inspection or simple field tests ?

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    Review the Gopal first column, it’s wrong, the correct value must be: the tabla value divided by 10000

  2. @Giuseppe Pace

    1 kg = 10 N, so, 1000 N = 100 kg = 1 kN. So, value of column 2 is divided by 100 to obtain value in kN/m2.

  3. Can I get step by step on how to find out SBC if cohesion=0.36 kg/cm²,angle of internal friction=13,Field dry density=1.603,fmc=12%.

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