Application of Sector Detection Technology in Advanced Detection
Application of Sector Detection Technology in Advanced Detection
复制标题
扇形检测技术在先进检测中的应用
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Yue, Jian-Hua
中科院分区：
文献类型：
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作者：
Liu, Yang-Guang;Liu, Zhi-Xin;Yue, Jian-Hua
为提高矿井瞬变电磁法超前探测的解释精度，采用扇形探测技术代替常规测量，在数据采集和探测时，在巷道正面左隅角分别调整天线法线方向与左巷夹角为60°、45 °和30°，在开挖断面前方布设2 ~ 3个测点，通过调整天线法线方向与巷道底板的夹角，探测巷道顶板、顺层和底板介质电性的变化，结果表明，通过调整天线法线方向与巷道底板的夹角，可以提高数据解释精度，在超前探测中采用扇形探测技术，能更准确地反映异常体的空间特征，探测图孔中心与揭露图孔中心的位置误差小于2 m。
Sector detection technology was used to enhance the explanation accuracy of mine transient electromagnetic method in advanced detection instead of conventional survey.During data acquisition and detection,the angle between the normal direction of the antenna and the left roadway is adjusted to 60°,45° and 30°respectively at the head-on left corner of roadway,two or three survey points were laid out in front of the excavated section,and then the angle at the head-on right corner of roadway is adjusted to the same degree to the left side.The variation of electric properties of medium in the roadway roof,the bedding and the roadway floor was detected by adjusting the angle between the normal direction of the antenna and the roadway floor.The results show that the data interpretation accuracy can be improved,and the spatial feature of anomaly body can be reflected more exactly using the sector detection technology in advanced detection.The position error between the bore center of detection plot and that of disclosed plot is less than 2 meters.