物探与化探2011，Vol.35Issue(2)：243-247,5.
TEM虚拟波场三维连续速度分析及其在隧道超前预报中的应用
A 3D CONTINUOUS VELOCITY ANALYSIS OF TEM FICTITIOUS WAVE-FIELD AND ITS APPLICATION TO TUNNEL ADVANCED PREDICTION
摘要
Abstract
In view of the fact that tunnel advanced geological prediction cannot effectively predict the flood in front of the tunnel face,this paper proposes a new method, i.e., transient electromagnetic wave-field transform continuation and imaging, which is based on the theory of floating plate and has proved to be very effective in predicting the unfavorable geological body in front of the tunnel face.With this desirable 3-D virtual velocity continuous analysis method, the problems of velocity extraction of observed data in migration imaging can be well solvod.This paper puts forward the suitable working method of transient electromagnetism for the application in tunnel.In addition, the theoretical models and application examples were analyzed and calculated, and the results obtained coincide with the actual situation, showing that this velocity analysis method is feasible and effective.关键词
瞬变电磁法/隧道超前预报/波场变换/偏移成像/速度分析Key words
transient electromagnetic method/ tunnel prediction/ wave field transform/ migration imaging/ velocity analysis分类
天文与地球科学引用本文复制引用
范涛..TEM虚拟波场三维连续速度分析及其在隧道超前预报中的应用[J].物探与化探,2011,35(2):243-247,5.基金项目
国家自然科学基金雅碧江水电开发联合基金项目(50539080) （50539080）
