Through introducing soil arching effect theoretical research achievements,its practice in rigid retaining wall,embankment pile and anti-slide pile engineering had active effect to soil arching effect research and application.

Study of soil arching in piled embankment with FEM;

Simplified method of settlement calculation and its application to piled embankments

The piled embankment is an effective method for controlling the post-construction settlement of embankment which has been emerged recently.

Numerical simulation and comparison of pile-net composite foundation with pile-supported embankment;

The pile-supported embankment is a new embankment structure introduced into China recently,which can control the residual settlement of the embankment reasonably and effectively and has a wide application prospect.

Taking Shen-Su-Zhe-Wan(SJZA) highway as engineering background,in-situ study of pile-supported embankment with pile partially penetrated in soft soils is carried out.

Three dimensional simulations on soil arching of piled embankments

Soil arching has significant influence on behaviors of piled embankments.

The analysis of soil arching is the first important issue for the design of piled embankments.

Theoretical analysis of combined action of cushion and embankment fills in pile-supported embankment;

Both stiffened platform effect and soil arching effect are affected by the cushion,so the cushion becomes a key part in pile-supported embankment for pile-soil stress adjustment.

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.