摘要
根据井田构造形态勘探线呈NE-SW向布置,瞬变电磁法测量采用40m×20m的网度400×400m发射线框,15A发射电流,8.333Hz发射频率,420μs采样延迟时间等参数能够取得最佳数据效果。资料处理时采用直接剔除畸变数据和非线性滤波两种方法消除噪声干扰,处理结果为5号煤层含水异常区有14个,其中2个富水性强,5个富水性中等;8号煤层含水异常区有10个,其中1个富水性强;1个富水性中等;富水性中等以上的区域面积为113 281m2。经矿方实际掘进证实了研究成果的准确性。
the feasibility tests and the optimal selection of emission flame size, emission current, emission frequency, sampling delay time, exploration line arrangement, and data processing techniques are taken in order to detect the deeply buried and multi-layer goal water under condition of complex landform by the TEM. The results show that it is efficient that the emission frame size is 400×400m, the emission current is 15A, the emission frequency is 8.333Hz, the sampling delay time 420μs. The Exploration line was arranged NE-SW direction according to the structural form in the mine field. Detection results show that there are 14 abnormal aqueous areas in the fifth coal seam area, 2 among which are strong rich water areas and 5-medium rich water areas. There are 10 abnormal aqueous areas in the eighth coal seam area, one among which is strong rich water areas and one medium rich water areas. The total size of medium to strong rich water areas is 113281m^2. The mine actual excavation confirms the accuracy of the research results.
出处
《四川地质学报》
2015年第3期443-447,共5页
Acta Geologica Sichuan
关键词
瞬变电磁
多目标层
老空水
技术参数
complex landform
multi-target layer
TEM
goafwater
technical parameter
