采矿与安全工程学报Issue(3):468-474,7.
高密度电法探测煤火的模拟及应用研究
Simulation of high-density electrical method in detecting coal fires and its application
摘要
Abstract
In this paper, the geo-electricity model of coal fires were established, and the forward modelings of Wenner α, dipole-dipole, Wenner-Schlumberger, pole-pole and pole-dipole were carried out by using the finite difference method. After adding noise interference into the forward data, the in-version was implemented to get the sectional drawing of apparent resistivity by using Gauss-Newton it-eration method. The inversion results show that all the burning center, burned cave and loose zone pre-sent abnormalities in the sectional drawings of apparent resistivity of the five array types, while Wenner-Schlumberger array has the best effect in distinguishing the burning center, and the Wennerαarray has the best effect in distinguishing the burned cave and loose zone. Moreover, the two array types mentioned above were applied to carry out high-density electrical detection in one fire zone, and the burning center, burned cave and loose zone were distinguished accurately. The research results provide theoretical basis and reference for the accurate detection of coal fires.关键词
煤火/探测/高密度电法/温纳装置/复合对称四极装置Key words
coal fires/detection/high-density electrical method/wenner α array type/wenner-schlumberger array type分类
天文与地球科学引用本文复制引用
邵振鲁,王德明,王雁鸣..高密度电法探测煤火的模拟及应用研究[J].采矿与安全工程学报,2013,(3):468-474,7.基金项目
国家自然科学基金委员会与神华集团有限公司联合资助项目(51134020);煤炭资源与安全开采国家重点实验室自主研究课题项目(SKLCRSM08X06);国家自然科学基金青年基金项目(51106175) (51134020)