半位错

表面半位错环能量修正系数的计算

Energy Correction Factor of Semicircular Dislocation Loop at Surface

从弹性位错理论出发，介绍了表面半位错环的弹性自能，通过位错环产生的应力场，给出了表面半位错环的能量修正系数及计算结果。

An exact expression for the elastic self energy of a semicircular dislocation loop at free surface is derived based on the elastic continuum dislocation theory . An energy correction factor is used to present the difference between the exact expression and earlier approximate expression .

基于Okada弹性半空间位错理论，在网络环境下开发了D-InSAR同震干涉形变场远程模拟系统，并对玛尼地震同震形变场进行了解析模拟，获取了此次地震的部分几何学及运动学参数。

Based on Okada elastic half space dislocation theory , a tele-computing system is developed , which can simulate the co-seismic D-InSAR interferometry deformation field at any Internet terminator .

并进一步采用分布滑动模型，利用弹性半空间均匀位错理论反演得到同震断层滑动分布。

The co-seismic fault slip distributions are further inverted using the elastic half-space homogeneous model with distributed slip model .

计算结果显示，相对实际地球模型，利用半空间均匀位错模型计算的同震变形差异很大，大大超出现有高精度测量技术的精度。

The calculation results show that the surface co-seismic deformation difference is so large that exceeding the accuracy of high precise observation technology if not considering the actually earth structure when just taking the earth as half-space homogeneous medium .

依据半弹性空间地震位错理论获得的静应力变化量，可以长期存在于邻近断层面上，直至下一次地震发生。

The changes on static stress , acquired according to the half-space elastic dislocation theory , can exist on fault plane for a long time until the next strong earthquake .