【作者】 崔健；

【导师】 申维；

【作者基本信息】 中国地质大学（北京） ， 地球探测与信息技术， 2011， 硕士

【摘要】 煤矿的水害,一直以来给煤矿的安全生产构成巨大威胁,其中最主要的就是矿井巷道掘进前方和顶、底板隐伏的导水、含水构造,极易造成涌、突水事故。瞬变电磁法应用于煤矿井下探水工作,有其技术的优越性,主要是对低阻体较灵敏,包括采空区水和含水构造,探测距离大,可以探测前方150米范围内的含水情况,在国内的很多矿区得到应用,效果明显。由于瞬变电磁法是近些年新兴起来的理论,尽管应用很广、硬件比较成熟,但理论和处理方法的研究相对滞后,很少有针对矿井下瞬变电磁法采集数据的处理软件,本文在大量阅读了相关文献后,结合瞬变电磁的探测机理和技术,基于matlab语言工具,开发出一套井下瞬变电磁处理软件。论文的主要成果及创新点如下:(1)通过井下采集的数据,进行多测道成图分析,可以清楚的显示出浅部和深部的高、低阻异常情况;(2)井下的干扰源较密集,通过数学手段,采取多种滤波方式,包括小波分析和希尔伯特黄变换等前沿理论方法,对瞬变电磁信号进行去噪处理,达到去除噪声、平滑曲线、凸显异常的目的;(3)在计算视电阻率时,采用同点回线装置的视电阻率计算公式,避免了晚期道计算公式造成早期数据偏离过大,浅层地质信息失真的情况;(4)在时深转换之后的深度校正上,针对不同的复杂程度的地质体,采用多种校正方法,以便更好的识别异常体的深度;(5)在surfer软件的成图上,详细介绍了剖面图和切片图的具体做法,以及成图过程中一些属性的细节。更多还原

【Abstract】 Coal mine flood has been to a huge threat of the coal mine production safety,the primary one is mine roadway in front and top-bottom buried the lead in water,it can easily cause water inrush.TEM used in coal mine work of exploring water has its advantages in technical ,the main is more sensitive , including God water and water structure.TEM can detected within 150 meters.it applied in many mines , the effect is obvious.The transient electromagnetic method is the theory of emerging in recent years,the application is very wide, the hardware is more mature, but the theory and treatment research is more behind, with little for the TEM in mine data collection processing software, a large number of reading related to this article literature, the combination of electromagnetic detection mechanism and technology to develop a set of downhole TEM processing software.The main achievements and innovations are as follows:1)Data collected through the underground, a multi-channel diagram analysis can clearly show that the shallow and deep high and low resistivity anomalies.2) More intensive underground sources of interference, through mathematical means, take a variety of filtering methods, including wavelet analysis and Hilbert Huang transform cutting-edge theories and methods of transient electromagnetic signal denoising, to remove noise, smooth curves, highlights The purpose of exceptions.3) When calculating the apparent resistivity, using the same point loop device of apparent resistivity formula, the formula to avoid the late Road, causing deviation from the early data is too large, shallow geological information distortion4) After time-depth conversion in the depth correction, and for different degrees of geological complexity, using a variety of correction methods in order to better identify abnormal body depth.5) Mapping software in the surfer, the details of the sections and slices the specific practices and the process of mapping the details of some properties.更多还原