## Dynamic soil subgrade modulus

## Dynamic soil subgrade modulus

(OP)

I'm designing a mat foundation for a petrochemical reactor. I need to determine the dynamic subgrade modulus so to estimate the stiffness of springs in a finite element model.

I have some cross-hole results. Does anyone have an idea how to correlate the compression modulus E of cross-holes to SPT results or Pressiometric results?

And, does anyone have a correlation factor or function between static and dynamic subgrade soil modulus?

PS: I appologize for any faults in technical term.. am in Paris...

thanks

I have some cross-hole results. Does anyone have an idea how to correlate the compression modulus E of cross-holes to SPT results or Pressiometric results?

And, does anyone have a correlation factor or function between static and dynamic subgrade soil modulus?

PS: I appologize for any faults in technical term.. am in Paris...

thanks

## RE: Dynamic soil subgrade modulus

## RE: Dynamic soil subgrade modulus

a colleague proposed Ed=3*Estatic... does anyone confirm this roughly?

the Crossholes modulus are approximately 150times higher than the static modulus....

## RE: Dynamic soil subgrade modulus

f-d

¡papá gordo ain't no madre flaca!

## RE: Dynamic soil subgrade modulus

## RE: Dynamic soil subgrade modulus

It might not react as a dynamic load.

## RE: Dynamic soil subgrade modulus

## RE: Dynamic soil subgrade modulus

## RE: Dynamic soil subgrade modulus

f-d

¡papá gordo ain't no madre flaca!