综合矿井物探在煤矿工作面底板富水性探测中的应用研究

发布时间：2018-03-28 06:57

本文选题：音频电透视　切入点：矿井直流电法　出处：《西安科技大学》2017年硕士论文

【摘要】：矿井工作面底板突水一直是影响煤矿安全生产的重要因素之一,合理有效的探查底板隐伏构造及富水性是煤矿防治水措施制定的关键。论文以阳泉新景矿80111工作面为研究对象,采用综合物探手段对工作面附近的富水情况进行了研究分析,为煤矿防治水措施的制定提供了科学依据。论文在考虑电法勘探中的音频电透视具有横向上异常位置定位精确,矿井直流电法对纵向上的异常分布特征响应明显的特点基础上,采用综合物探手段对研究区底板岩层附近的水文地质条件予以探查。在对原始资料处理分析的基础上绘制了相关物探图件,根据煤层底板视电阻率等值线图,对两种物探成果分别圈定异常区,再结合地质资料解译出沿物探测线方向上的电性变化特征。最后通过两种方法探测结果的对比分析,圈定了 80111工作面底板富水情况。探测结果表明,矿井音频电透及直流电法各探测3处异常区,对比横、纵向探测的异常位置及范围,再结合已有的地质资料,对探测的3个异常区的位置及范围进行了校正。本文的研究认为音频电透视法与矿井直流电法虽都能够有效探测工作面底板的富水性,但单一的物探方法均不仅具有多解性,且单一的剖面或断面上难以准确圈定异常区范围,而综合物探可以提高地球物理资料解释的准确性。
[Abstract]:The water inrush from the floor of mine face is always one of the important factors that affect the safety of coal mine production. Reasonable and effective exploration of the hidden structure of floor and water enrichment is the key to the formulation of water prevention measures in coal mine. This paper takes 80111 face of Yangquan Xinjing Mine as the research object. This paper studies and analyzes the situation of water enrichment near the coal face by means of comprehensive geophysical exploration, which provides a scientific basis for the formulation of water prevention measures in coal mines. On the basis of the obvious response of mine direct current method to the characteristic of longitudinal anomalous distribution, The hydrogeological conditions near the floor strata in the study area are probed by means of comprehensive geophysical prospecting. Based on the processing and analysis of the original data, the relevant geophysical maps are drawn, and the contour map of apparent resistivity of the coal seam floor is drawn according to the contour map of the apparent resistivity of the coal seam floor. The two geophysical exploration results are used to delineate the anomalous areas respectively, and the electrical variation characteristics along the object detection line are interpreted by combining the geological data. Finally, the comparison and analysis of the detection results by the two methods are carried out. The water enrichment in the floor of 80111 working face is delineated. The detection results show that the abnormal position and range of the horizontal and longitudinal detection are compared with the three abnormal areas detected by the audio permeation method and the direct current method respectively, and combined with the existing geological data. The location and range of the three anomalous areas detected are corrected. In this paper, it is considered that both the audio frequency electric perspective method and the mine direct current method can effectively detect the water enrichment of the bottom plate of the working face, but the single geophysical prospecting method is not only multi-solvable. It is difficult to accurately delineate the anomalous area on a single section or section, and comprehensive geophysical exploration can improve the accuracy of geophysical interpretation.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD745;P631

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