On the basis of former theories,a compatible elliptical model with a common evolution characteristics related to fault length,fault displacement and fault surface geometry was presumed, the spatial deformation of faults were analyzed,and the development of different kind of faults and their control capacity of oil and gas reservoir were indicated.

Research on the story drift and allowable value index of buckling restrained braced frame structure

It is based on the story drift to form the structural vibration equations.

At same time, the superposition of the floor displacement and story drift response spectra is discussed.

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.