Taking a classic Spar platform as an example,the mutual amplifying and "dancing" motion of the coupled heave-pitch motion for the platform are investigated based on the idea of heave envelope.

The binary linear regress analyzing principle is used to analyze the amplification effect about blasting vibration,moreover,the results are compared with tho.

By means of the direct-stiffness method of structural analysis based on the theory of wave propagation,the influence of properties of soil layer on the amplification effect for the incident SH waves of a site with increasing stiffness,site with stiffness layer and site with soft layer is analyzed.

The main target of this thesis is as follows:1、Study the influence of the soft soil layer to peak acceleration of earthquake, mainly study the thickness and depth of the soft soil layer to analysis the amplification effect or reduction effect of peak acceleration of earthquake.

Then,the amplitude amplification for the pile cap response of the coupled system to the bedrock shaking was obtained,and the dynamic interaction was reflected.

This paper makes an analysis of the multiple magnification effect of the initial impact on macro economic variables on the premise of fast capital flow.

Based on questionnaires, case analysis as well as theoretical survey, we term such phenomenon as media\'s amplifier effect.