This paper presents the basic principle of seismic datum polarization analysis for the complex calculations and graphic display in software development by employing the comprehensive programming method of MATLAB and VC++ in the polarization analysis processing,which makes the software development easy with high efficiency.

Base on a review of several Russian literatures, the author introduced the methodologies of detection of basement fractured zone and reservoir with scattering of seismic waves, determination of the structure of heterogeneous bodies with polarization analysis, and inference of hydrocarbon reservoir with dispersion a.

Due to the fact that the polarization characteristics of seismic signals and random noises are different, polarization analysis can he used to attenuate random noises on seismic records.

It is mainly introduced that the principles, necessarytechniques of two methods-microelectrochemical analysis and microcolumn separation.

Orthogonal experiment and extremum difference analysis were used in optimisation of reinforcing fibres volume fractions and technique parameters.

The limit analysis method theoretical research and application of earth-retaining wall active soil pressure;

Analytical solution of bearing capacity of around unconfined cube soil using limit analysis method;

Finite element limit analysis method has the advantage of combining numerical analysis method with traditional limit equilibrium methods.