可控源音频大地电磁法在陷落柱富水性勘查的研究——以山西沁水煤矿为例

Study on Controlled Source Audio-frequency Magnetotelluric (CSAMT) Method in the Exploration of Water-richness of Collapse Columns——Taking Qinshui Coal Mine in Shanxi Province as an Example

摘要:

山西沁水某煤矿矿区内发育多个陷落柱，但柱体内赋水状况一直未能明确，给矿井的安全生产带来了极大的风险。为了有效应对这一严峻局面，决定采用可控源音频大地电磁法对陷落柱的富水性开展深入探测。此方法旨在精确探明陷落柱发育范围，将其地质形态与水文地质赋存特征全面剖析清楚。通过分析陷落柱的可控源音频大地电磁响应特征，分析不同电阻率组合的陷落柱结构，建立陷落柱分段结构化模型，能够帮助相关人员直观精准地了解陷落柱内部构造与赋水情况，为后续制定科学合理的防治水措施。

Abstract:

Multiple collapse columns have developed in a coal mining area in Qinshui area in Shanxi province. But the water content inside the columns has not been clearly defined, which poses a great risk to the safety production of the mine. In order to effectively cope with this severe situation, it has been decided to use controllable source audio magnetotelluric method to conduct in-depth exploration of the water rich properties of collapsed columns. This method aims to accurately determine the development range of collapse columns and comprehensively analyze their geological morphology and hydrogeological characteristics. By analyzing the controllable source audio magnetotelluric response characteristics of the collapse column, analyzing the structures of the collapse column with different resistivity combinations, and establishing a segmented structured model of the collapse column, it can help relevant personnel intuitively and accurately understand the internal structure and water supply situation of the collapse column, and provide scientific and reasonable water prevention and control measures for subsequent development.