Based on the climate changes and biological characters of Pinus massoniana and Pinus yunnanensis, using the Holdridge life zone sort model and the Ecology Information System, this paper respectively calculates the geographical displacements of these two species of trees.

Combined the integral representations for displacements of the semi-infinite elastic foundation subjected to arbitrary vertical dead load with the bending analytic solution of an elastic rectangle plate with four free edges rested on the semi-infinite elastic foundation, an efficient calculating technique for foundation displacements is developed.

Combined the integral representations for displacements of semi-infinite elastic foundation subjected to arbitrary vertical dead load with the bending analytic solution of an elastic rectangle plate with four free edges rested on semi-infinite elastic foundation to develop an efficient calculating technique used to resolve the foundation displacements.

Analysis of stratum displacements by multiple arch tunnel construction;

Based on the current studying situation of the stratum displacement caused by shield tunneling and the interaction of soil and lining of tunnel, the thesis has discussed the shield tunneling process, which has significantly influenced the stratum displacement and earth pressure.

A predicting model for ground movement induced by non-uniform convergence of tunnel;

The numerical analysis method is used to study the ground movement laws caused by the ovalization variation in the cross section in the action of water and soil pressure of tunnel lining.

The methods to estimate the ground movements and surface settle- ments due to shield tunneling are introduced in the first part,including the empirical method,the analytical method,the integral finite element method and the finite element method based on displacem.

Analysis of seismic displacement control for long-span bridges by using SMA dampers;