Mar 28, 2012 · Hello, I am working on the geotechnical investigation for a 25 story tower project. After computing the stimated elastic settlements (using sigma - W) (project is located on a …

Mar 16, 2005 · Can anyone suggest ways of accurately estimating the Modulus of Subgrade Reaction for a soil. Available parameters: SPT N values, Moisture, Unconfined Compressive …

Aug 17, 2010 · We are constructing a 10" gravel roadway over existing surface. No cutting of existing ground will occur. Is it normal to run a roller over the existing ground and get our 95% …

Sep 18, 2023 · Even mat foundations can be designed without subgrade modulus. Just to be clear, I know subgrade modulus is still used for pavement and sometimes slab-on-grade …

Jul 28, 2005 · For slabs on grade, the modulus of vertical subgrade reaction needs to be decreased for increasing slab dimensions. Even though the basic theory is the same, slabs on …

Jul 15, 2002 · The modulus of subgrade reaction is a calculation expedient, and nothing more. It is the ratio of applied pressure divided by the corresponding soil or rock movement.

Apr 14, 2016 · The modulus of subgrade reaction is a basis for structural engineers to evaluate deformation from point loads that may or may not be applied to the slab. Say, you know a …

May 7, 2002 · I need to know if there is a correlation, a formula or any method to determine the modulus of subgrade reaction using the DCP index or CBR values. I want to evaluate de CBR …

Apr 10, 2003 · With a recent (2019 ~ 2020) update to design standards, the methods of testing the CBR of the subgrade for highway design was removed, with designs now to be based on …

Feb 4, 2012 · I am designing a raft/slab foundation on grade for a G+1 light gauge steel hospital building in SAFE software. The soil bearing capacity is 50 KN/m2 and soil is soft clay soil but …