| 起伏地形对近矿围岩充电法影响规律的数值模拟研究 |
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| 引用本文： | 杨华,李金铭.起伏地形对近矿围岩充电法影响规律的数值模拟研究[J].物探与化探,1999,23(3):202-210215. |
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| 作者姓名： | 杨华 李金铭 |
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| 作者单位： | 中国地质大学,北京,100083 |
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| 摘 要： | 以山脊、山谷地形为例,通过点源二维有限元数值模拟给出了起伏地形条件下近矿围岩充电法一次电场和激发极化二次电场的剖面曲线,研究了地形对电场的影响,总结了起伏地形情况下的异常分布规律,并用比值法对其进行了地形校正,校正后的结果表明效果是比较好的.
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| 关 键 词： | 近矿围岩充电法 起伏地形 电位 电位梯度 比值法 地形校正 |
| 收稿时间： | 1998-11-27 |
THE NUMERICAL MODERLING STUDY OF THE INFLUENCE REGULARITY OF ROLLING TOPOGRAPHY UPON NEARPRE WALLROCK “MISEALAMASSE” METHOD |
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| Yang Hua,Li Jinming.THE NUMERICAL MODERLING STUDY OF THE INFLUENCE REGULARITY OF ROLLING TOPOGRAPHY UPON NEARPRE WALLROCK “MISEALAMASSE” METHOD[J].Geophysical and Geochemical Exploration,1999,23(3):202-210215. |
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| Authors: | Yang Hua Li Jinming |
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| Institution: | China University of Geosciences, Beijing 100083 |
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| Abstract: | Exemplified by ridge and valley topography and based on two dimensional finite element numerical simulation,this paper has given profile curves of primary electric field of near ore wallrock “mise a la masse” method and IP secondary electric field under the condition of rolling topography,studied the influence of topography upon the electric field,summarized distribution regularity of anomalies under the condition of rolling topography and,using radio method,made topographic correction.The results of the correction show that the effect is fairly satisfactory. |
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| Keywords: | near ore wallrock "mise a la masse" method correction of rolling topography |
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