Does anyone know if there is an accepted way of determining the horizontal modulus of subgrade reaction from a laboratory test or maybe the results from other lab tests such as direct shear? I've seen charts based on blow counts but am curious if another method, other than an it-situ test, is...
I'm a relatively new project engineer and I'm having trouble convincing an owner on one of my projects that rock over 3-4 inches in dia. should be removed from over-ex material before replacement as engineered fill. I tried explaining the difficulty/impossibility of proper compaction to him...
