摘要
传统瞬变电磁技术存在体积效应,仅能确定含水异常体的方位,难以对含水异常体的边界进行精确探测。针对煤矿井下巷道掘进超前探测特点,基于瞬变电磁法波场变换方法,形成了巷道超前探测波场成像技术,并结合某矿巷道掘进超前探测工程,利用波场成像技术对超前探测数据进行处理,较为准确地确定了含水异常体的边界。结果表明,同传统数据处理结果相比,巷道瞬变电磁超前探测波场成像技术能够确定含水异常体边界,波场曲线幅值与出水位置对应较好,含水异常体边界位置同波场成像结果更为吻合。
Because of volumetric effect, the traditional TEM can be used only to confirm azimuth of water-bearing anomalous body, and hard to accurately detect boundary of the body. In allusion to the features of coalmine roadway heading advanced prospecting, based on TEM wave field transformation method has formed roadway advanced prospecting wave field imaging technology. Combined with roadway advanced prospecting project of a coalmine, through the imaging technology carried out data processing of the advanced prospecting has determine the boundary of water-bearing anomalous body rather accurately. The result has shown that comparing with traditional processed results, the wave field imaging technology can confirm water-bearing anomalous body boundary, better corresponding between wave field curve amplitude and water outlet position, more consistent water-bearing anomalous body boundary position and wave field imaging result.
作者
邱浩
牟义
廉玉广
Qiu Hao;Mu Yi;Lian Yuguang(Mine Safety Technology Branch,China Coal Research Institute,Beijing 100013;State Key Laboratory of Coal Mining and Clean Utilization,Beijing 100013;Beijing Mine Safety Engineering Technology Research Center,Beijing 100013;Jincheng Anthracite Mining Group Technology Research Institute Co.,Ltd.,Jincheng,Shanxi 048006)
出处
《中国煤炭地质》
2019年第7期67-70,共4页
Coal Geology of China
基金
国家自然科学基金资助项目(51704162,51674142)
国家科技重大专项资助项目(2016ZX05045001-004)
