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一、问题的由来大地测量给地震学科研究提供了地震前后的地壳运动静态位移场。这在地震地质分析和地震震源参数的反演已被作为重要的依据,因此,首先应该得到一个较为真实的形变位移场.这对于新丰江水库地震研究来说更为突出。因该水库的地震活动频繁,余震震级不大,位移量较小。新丰江的形变三角网范围也不大,而所有三角点都布设在地震密集区的大坝周围。
First, the origin of the problem Geodesy provides the Earthquake Research Station before and after the crustal movement of the static displacement field. This is an important basis for the seismic geological analysis and inversion of seismic source parameters, so a more realistic deformation displacement field should be obtained first, which is more prominent for the study of Xinfengjiang reservoir earthquake. Due to the frequent seismic activity of the reservoir, the aftershock magnitude is small and the displacement is small. The deformation triangle in Xinfengjiang is not large, and all the triangles are arranged around the dam in the earthquake-intensive area.