物探与化探2011，Vol.35Issue(3)：414-418,5.
坑道直流电法环境影响三维数值模拟与结果分析
3D NUMERICAL SIMULATION AND ANALYSIS OF TUNNEL ENVIRONMENT INFLUENCE ON DC RESISTIVITY SURVEY
摘要
Abstract
Due to the tunnel cavities and a variety of engineering tacilities in the tunnel, the resistivity anomaly is subject to serious distortion, which will increase the difficulty of data interpretation and accurate locating of the abnormal body. In this paper, the finite element method was used to calculate the tunnel environment respunse,the resistivity calculation method under the special tunnel condition was analyzed, and computer modeling experiments were conducted. And then, according to the environmental anomalies in different survey lines, three different models were designed to calculate the effect of tunnel environment on the detection of surrounding abnormal bodies. The ratio method, difference method and integrated correction method which are used for reducing the false anomaly resulting from tunnel environment were employed. The results show that it is necessary to remove the tunnel environment anomaly before the interpretation of measured data, and the above methods can be used to eliminate the environmental influence of the tunnel.关键词
坑道直流电法/消除异常干扰/坑道环境/三维数值模拟/有限元法Key words
DC resistivity method in tunnel/ eliminating abnormal interference/tunnel environment /3D numerical modeling/finite-elemenl method分类
天文与地球科学引用本文复制引用
王建历,阮百尧,黄俊革,侯冬梅,杨庭伟..坑道直流电法环境影响三维数值模拟与结果分析[J].物探与化探,2011,35(3):414-418,5.基金项目
国家自然科学基金项目(40774057) （40774057）
上海市教委创新基金项目(08YZ168) （08YZ168）
