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近几年来,在解决综采工作面的地质构造问题中,坑道透视法得到了较有成效的试验应用。由于坑道透视仪仪器轻便,操作简单,用人少、效率高、成本低、地质效果显著等其它矿井物探方法不可比拟的优点,已是我国目前颇受欢迎的一种矿井物探方法。 但坑道透视仪在井下使用过程中,在某些矿区常常出现因巷道底板干燥发射机地网接地电阻过大而输出功率过小的问题。为了改善接地条件,将发射机的金属地网直接铺设在巷道中的铁轨上。功率输出更有所增大,但在地网与铁轨如果接触不好,有可能
In recent years, to solve the problem of geological structure of fully mechanized mining face, tunneling method has been more effective test applications. Due to the incomparable merits of other tunnel geophysical methods such as lightweight, simple operation, less manpower, high efficiency, low cost and significant geological effect, the tunnel perspective instrument has become a popular geophysical prospecting method in China. However, the tunnel perspective instrument in the underground process, often appear in some mining due to roadway floor dry transmitter grounding resistance is too large and the output power is too small. In order to improve the grounding conditions, the metal mesh of the transmitter is laid directly on the rails in the roadway. Power output more increased, but if the ground network and the rail is not good, it is possible