| 瞬变电磁技术在巷道超前探测中的应用 |
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| 引用本文： | 张纪勋,范志平.瞬变电磁技术在巷道超前探测中的应用[J].中国煤田地质,2006,18(3):60-61. |
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| 作者姓名： | 张纪勋 范志平 |
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| 作者单位： | 河北省煤田地质局第二水文地质队 河北邢台054000 |
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| 摘 要： | 瞬变电磁法具有测距大(150～200m)、对水敏感、定向性好等优点,能够有效探测井下掘进巷道前方隐伏含水异常体,为矿井生产提供地质保障。在勘探实例中,根据井下巷道环境条件和技术要求,消除金属体及非测量电源等干扰因素,并采用偶极装置方式,选择2种规格的发射线圈(2m×2m及1m×1m),在探测巷道距离足够大的情况下,较成功地圈定了老窑采空区及陷落柱的位置、范围、富水性等地质信息,为矿井防治水害提供了依据。
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| 关 键 词： | 瞬变电磁法 巷道 超前探测 含水异常体 |
| 文章编号： | 1004-9177（2006）03-0060-02 |
| 收稿时间： | 2006-05-10 |
| 修稿时间： | 2006年5月10日 |
The Application of Transient Electromagnetic Technique in Roadway Leading Prospecting |
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| Zhang Jixun,Fan Zhiping.The Application of Transient Electromagnetic Technique in Roadway Leading Prospecting[J].Coal Geology of China,2006,18(3):60-61. |
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| Authors: | Zhang Jixun Fan Zhiping |
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| Abstract: | The transient electromagnetic method has strongpoint of larger range(150-200m),water sensitive and excellent directive property,can effectively detect hidden abnormal water-bearing body ahead of roadway excavation.In a prospecting living example,according to roadway environment and technical requirement,to eliminate interference factors from metal objects and non measuring power,used dipolar setting up,two norms(2m x 2m and 1m x 1m) of transmitting coil were selected.In the case of sufficient prospecting roadway spacing,successfully located gob areas and subsided columns,their extensions and geological information such as water yield property etc.,thus provided a foundation to mine water control. |
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| Keywords: | transient electromagnetic method roadway excavation Leading Prospecting abnormal water-bearing body |
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