| 华北型煤田水文地质电法勘探的深度问题 |
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| 引用本文： | 闫述,石显新,陈明生.华北型煤田水文地质电法勘探的深度问题[J].煤炭科学技术,2006,34(12):5-8. |
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| 作者姓名： | 闫述 石显新 陈明生 |
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| 作者单位： | 1. 江苏大学,计算机科学与通信工程学院,江苏,镇江,212013
2. 煤炭科学研究总院,西安分院,陕西,西安,710054 |
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| 基金项目： | 国家自然科学基金;江苏大学校科研和教改项目 |
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| 摘 要： | 直流电阻率、瞬变电磁场和可控源音频大地电磁测深是煤田水文地质勘探常用的方法。针对华北型煤田地层电性特点，通过电磁探测原理分析与勘察实例，说明了在此类地区需要更大的极距、更长的观测时间和更低的频率才能达到预期的探测深度。为在华北型煤田水文地质勘探中取得更好的探测效果，采用综合电磁探测方法是必要的。
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| 关 键 词： | 直流电阻率法 瞬变电磁场法 可控源音频大地电磁测深 华北型煤田 探测深度 |
| 文章编号： | 0253-2336(2006)12-0005-04 |
| 收稿时间： | 08 9 2006 12:00AM |
| 修稿时间： | 2006年8月9日 |
Issues on probing depth of hydrogeological electrical magnetic method for exploration of North China coal field |
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| YAN Shu,SHI Xian-xin,CHEN Ming-sheng.Issues on probing depth of hydrogeological electrical magnetic method for exploration of North China coal field[J].Coal Science and Technology,2006,34(12):5-8. |
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| Authors: | YAN Shu SHI Xian-xin CHEN Ming-sheng |
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| Abstract: | A direct current resistance rate, transient electric magnetic field and controllable power audio frequency ground electric magnetic depth probing are the conventional methods for the hydro - geological exploration. According to the electric features of North China type coal field, the principle analysis and exploration cases of the electric magnetic probing showed that a largest pole distance, longer observation time and lower frequency would be needed to reach the expected probing depth. In order to have better probing results from the hydrogeological exploration in North China coal field, it is necessary to have a comprehensive electric magnetic probing method. |
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| Keywords: | direct current resistance rate method transient electric magnetic field method controllable power audio frequency ground electric magnetic to probe depth North China type coal fieht probing depth |
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