A total of fifteen self-stressing and self-compacting concrete filled steel tube columns and three self-compacting concrete filled steel tube columns are tested under eccentric compression load to analyze the influence of initial self-stress on the compression behavior of the concrete filled steel tubes.

Three-dimensional finite element analysis of initial stress around screw implant;

Bounding surface equation of initial stress anisotropy;

Regression analysis and 3 D fitting of initial stress;

A methodology combining genetic algorithm and finite element method for back analysis of initial stress field of rock masses;

Application of artificial neural network to back analysis of initial stress field of rock masses;

Identification of initial stress field parameters in the rock mass with the stochastic method;

A simplified calculation method for initial prestress distribution of sunflower-patterned cable domes;

Based on the concept of integral feasible prestress, the initial prestress state of these domes are also calculated.

Regression analysis of 3D initial geostress field for dam site of Xiaowan Hydropower Station;

Displacement boundary technique for simulation of initial geostress and its application;

Back regression analysis on the initial geostress field of the Shuangjiangkou hydropower station;