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 weathered …

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 racking …

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 designs. However, …

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 Strength & Angle …

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% compaction …

May 4, 2008 · I have a question about how the subgrade modulus relates to the assumed spring stiffness of a soil. I have a rather large mat foundation to design (using a beam on elastic foundation) …

May 12, 2003 · Compacting the upper 12" of the footing subgrade goes a long way toward helping to reduce settlement in more ways than simply "repairing" the subgrade due to construction …

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 grade and laterally …

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 to analyze this …

May 25, 2010 · It said that "If k is the spring constant for the finite element model in units F/L, then k is determined by multiplying the coefficient of variation of horizontal subgrade reaction by the depth of …