In the course of a forensic investigation of failed residential foundations in compacted fill, I was provided with the following test data by a geotech firm:
LL = 36%
PI = 17%
USCS = CL
Standard Proctor Tests:
MDD = 127.2 pcf OMC = 12.8%
MDD = 121.0 pcf OMC = 15.8%
MDD = 107.5 pcf OMC =...
There is a practice among geotechnical engineers in my area that is locally called an “engineered footing.” This practice is used mainly in residential foundation construction where weak soils are encountered at the bottom-of-footing elevation and a firm bearing layer underlies the weak soils...