矿井瞬变电磁技术在陷落柱探测中的应用

陷落柱是影响煤矿安全生产的重要因素之一。介绍了矿井瞬变电磁技术探测的基本原理,采用澳大利亚TERRATEM仪器在矿井巷道迎头位置设计了14个测点,进行了4个探测方向(与水平方向夹角为-60°、-40°、-20°和0°)的探测实验,通过对探测结果的分析,准确发现了迎头前方50 m~75 m处的陷落柱结构,并分析了其导水性以避免矿井透水事故的发生。

The Application of Mine Transient Electromagnetic Detection Technology in Detecting the Collapse Column

Collapse column is one of the most important factors affecting coal mine’s safe production. This paper introduces the basic principles of the detection with the mine transient electromagnetic technology, and by using the TERRATEM instrument made in Australia, designs 14 detecting points in the heading position of the mine tunnel, makes the detection experiments along the detection directions with the horizontal angle of -60° , -40° , -20° and 0° , and through analysis the detection dates, accurately identifies the structures of the collapse columns in front of the of 50 m-75 m of the heading position, and analyzes the transmissibility of the collapse columns for avoiding the water burst accident in coal mine.