| 刘正,杨生,范剑,马为,刘涛.三分量瞬变电磁法在寻找掩埋矿井中的应用[J].矿产勘查,2015,6(6):769-774 |
| 三分量瞬变电磁法在寻找掩埋矿井中的应用 |
| Application of three components transient electromagnetic methods in finding buried well |
| 投稿时间：2015-04-06 |
| DOI： |
| 中文关键词: 瞬变电磁法 三分量 掩埋井 |
| 英文关键词: transient electromagnetic methods, three components, buried well |
| 基金项目: |
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| 中文摘要: |
| 为了寻找掩埋矿井以支持城市化建设,文章对掩埋井中填充低阻体的三分量瞬变电磁响应进行了数值模拟,并通过在唐山地区利用瞬变电磁法寻找掩埋井的实例,观测了浅地表已知垂直柱状低阻体的三分量瞬变响应分布形态,总结了瞬变响应的特点。正演模拟及现场试验表明TEM法是一种有效的寻找掩埋井的物探手段,并且可以有效地对后期注浆效果进行复查。利用三分量TEM可以准确地判断单一垂直分量异常的真实性,同时可以更精确地控制井孔位置,使综合判断的依据更加充分。 |
| 英文摘要: |
| In order to find buried wells for city construction, numerical simulation of the three components TEM response from a low resistance column in a buried well was calculated in this article. As an example, the distributional pattern of three components TEM response from a low resistance object was measured in finding buried wells by TEM in Tangshan, from which the feature of the three components TEM response was summarized in the article. The results of numerical simulation and the field test show that TEM is an effective method to find buried well and can be used to check the grouting effect. Besides, the reliability of the sole vertical component of TEM anomalies can be accurately judged and the well position can be controlled by using three component TEM, to make sure there are enough evidences for comprehensive judgment in finding buried well. |
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