Load Transfer of Cement-Soil Column by Full Scale Load Test in Soft Clay

The deep mixing method (DMM), by which, soil and cement are blended together in situ to form soil-cement columns, is used throughout the world. In this paper, load transfer behavior of cement-soil columns was performed by full-scale load tests in situ. By developing Chin’s method (Chin, 1970), a method is presented to estimate the pile ultimate capacity based on the load to settlement curve of pile static load test. The measured results showed that the strain near the pile tip was small. The major deformation of the pile is in the range of 0 to the effective length, beyond which the strain of the pile is less than 10%. The increase of the load mainly affected the deformation of the pile within the range of 0 to lc, but hardly over lc