不同尺度应变值的归算方法研究

Research on the Reduction Method of Strain Values at Different Scales

为了更加客观地反映应变场的空间变化规律,必须对不同空间及时间尺度的应变值进行统一归算。本文通过对川滇地区多年GPS观测资料进行分析,论证不同尺度应变值的相关性,得出不同应变值的均值及均方差呈幂指数分布特征,通过使用有限单元应变分析法求解应变场并进行尺度归算,论证不同尺度应变值归算方法的适用性和合理性。

In order to reflect the spatial variation of strain field more objectively,the strain values of different spatial and temporal scales must be unified. Based on the analysis of GPS observation data in Sichuan and Yunnan for many years,this paper demonstrates the correlation of strain values at different scales,and concludes that the mean and mean square deviation of different strain values are exponentially distributed. The strain field is solved by finite element strain analysis method,and scale reduction is carried out to prove the usefulness and rationality of strain value reduction methods at different scales.