应用地球物理（英文版）
應用地毬物理（英文版）
응용지구물리（영문판）
APPLIED GEOPHYSICS
2010年
3期
265-271
,共7页
巩向博%韩立国%牛建军%张晓培%王德利%杜立志
鞏嚮博%韓立國%牛建軍%張曉培%王德利%杜立誌
공향박%한입국%우건군%장효배%왕덕리%두립지
Tunnel prediction%migration velocity analysis%Kirchhoff integral migration%reverse time migration%velocity model-building
We propose a combined migration velocity analysis and imaging method based on Kirchhoff integral migration and reverse time migration,using the residual curvature analysis and layer stripping strategy to build the velocity model.This method improves the image resolution of Kirchhoff integral migration and reduces the computations of the reverse time migration.It combines the advantages of efficiency and accuracy of the two migration methods.Its application in tunnel seismic prediction shows good results.Numerical experiments show that the imaging results of reverse time migration are better than the imaging results of Kirchhoff integral migration in many aspects of tunnel prediction.Field data show that this method has efficient computations and can establish a reasonable velocity model and a high quality imaging section.Combination with geological information can make an accurate prediction of the front of the tunnel geological structure.
