The author states the construction methods and pr oceedings of pavement bed course and base course.

The application of foaming cement ground cushion technology

Construction technology of concrete pavement surface in a certain road carriageway;

Therefore,it is significant to introduce the vertical section symmetry of roadbed based on the calculation theory of pile group-pile cap system using variational principle,so as to reduce the calculation capacity,put forward the numerical analysis of settlement calculation of cosmically pilecap bedding embankment,and put it into practice.