The complexity of geotechnical engineering makes that there must be deviation in the 3D numerical analytical result from the reality. We analyze those deviations
feed back the 3D model with the coupling data and get the parameters adjusted. That is to say that we adjust the easily adjusted factors which result in the inaccuracy for the uneasily adjusted ones; and make the inaccuracy of 3D numerical analytical result to the minimum. We can use the adjusted parameters in the next analytical model
and will get the more accurate numerical analytical result.