What is the Coefficient of Subgrade Reaction?

There are many factors which are responsible for the deformation of RCC roads ; -Shrinkage cracks - Damaged portion of rigid pavements - Durability cracks - Effect of pumping - Faults in rigid pavements - Uneven curing - Delaying in pavements

There are many factors which are responsible for the deformation of RCC roads ;

-Shrinkage cracks

– Damaged portion of rigid pavements

– Durability cracks

– Effect of pumping

– Faults in rigid pavements

– Uneven curing

– Delaying in pavements

## nikeetasharma

The coefficient of subgrade reaction is referred as the ratio between the pressure against the footing or mat and the settlement at a given point expressed as the coefficient of subgrade reaction which is defined as the ratio between the pressure against the footing or mat and the settlement at a giRead more

The coefficient of subgrade reaction is referred as the ratio between the pressure against the footing or mat and the settlement at a given point expressed as the coefficient of subgrade reaction which is defined as the ratio between the pressure against the footing or mat and the settlement at a given point which is expressed as ;

ks = q/S

where,

ks = coefficient of subgrade reaction

q = pressure on the footing or mat at a given point

S = settlement of the same point of the footing or mat in the corresponding unit of length

i. The value of k is independent of the magnitude of pressure.

See lessii. The value of s has the same value for every point on the surface of the footing.