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针对煤矿井下的安全、高效的开采,传统的瞬变电磁探测系统存在着较大的探测盲区和探测精度不高,无法对煤矿井下水体的精确定位等问题;考虑矿井巷道的具体的施工环境和空间的限制,开发了多通道瞬变电磁采集系统;该系统使用高精度小线圈进行阵列式探测,使用多通道采集技术进行同步采集。在同煤集团塔山煤矿进行了超前探测实验,实验结果表明:多通道阵列式采集系统相对于传统的接收线圈,多通道采集系统不仅达到了传统线圈的探测效果,而且减小了探测盲区,在干扰较强的巷道,具有较好的探测效果。
In view of the safe and efficient mining in coal mine, the traditional transient electromagnetic detection system has some problems such as large detection blind spot and poor detection accuracy, which can not locate the water body precisely in coal mine. Considering the concrete construction environment of mine tunnel and Space constraints, the development of a multi-channel transient electromagnetic acquisition system; the system uses high-precision small coil array detection, the use of multi-channel acquisition technology for synchronous acquisition. In the coal mine Tashan advanced exploration test, the experimental results show that: multi-channel array acquisition system relative to the traditional receiver coil, multi-channel acquisition system not only achieved the detection effect of the traditional coil, but also to reduce the detection blind spot, in the Interference strong roadway, with better detection results.