i m mitesh i would like to get details on improvement of bearing capacity of sandy soil by grouting

Bearing capacity of soil is the value of the average contact pressure between the foundation and the soil which will produce shear failure in the soil. Ultimate bearing capacity is the theoretical maximum pressure which can be supported without failure. Allowable bearing capacity is what is used in geotechnical design, and is the ultimate bearing capacity divided by a factor of safety.

Theoretical (Ultimate) and allowable bearing capacity can be assessed for the following:

Shallow Foundations
strip footings
square footings
circular footings
Deep foundations
end bearing
skin friction