煤田地质与勘探2016，Vol.44Issue(3)：116-119,4.DOI:10.3969/j.issn.1001-1986.2016.03.022
基于三维有限元法的巷道影响特征
Impact characteristics of roadway based on 3D finite element method
摘要
Abstract
In the transient electromagnetic detection in mine, the results of the detection are affected by the road-way space, which is not conducive to the interpretation of the results of detection. The 3D finite element method was employed in the study to simulate the impact characteristics of roadway by establishing geological model and the distributions of transient electromagnetic field when there exists roadway or not, and then, the distribution of contour of the magnetic field intensity at different time such as 10s and 0.1 ms was drawn. The results showed that the spread of magnetic field in high resistance area was slower than that in low resistance area, changes of the length of roadway had great impact on the distributions of the magnetic field along its length, and changes of the height of roadway affected the distributions of the magnetic field along its height. The roadway space had great impact on the distribution of magnetic field in the early time and small impact in the late time, which provided theoretical basis for the interpretation of the results of the detection.关键词
矿井瞬变电磁/巷道/三维有限元法/数值模拟Key words
transient electromagnetic method for mine/roadway/3D finite element method/numerical simulation分类
地质学引用本文复制引用
王国富,聂杰力,张法全,叶金才..基于三维有限元法的巷道影响特征[J].煤田地质与勘探,2016,44(3):116-119,4.基金项目
国家自然科学基金项目(61102115，61362020)；广西省自然科学基金项目(2012GXNSFBA053117)@@@@National Natural Science Foundation of China(61102115，61362020)；Natural Science Foundation of Guangxi Province of China(2012GXNSFBA053117) （61102115，61362020）
