井巷瞬变电磁法在某金矿超前预报中的应用

随着金矿资源逐渐向深部开采,巷道掘进工程面临的水文地质条件越来越复杂,特别是巷道涌水现象频发。井巷瞬变电磁法作为巷道超前探水的主要方法,具有体积效应小、设备轻便、施工简单、对低阻体分辨能力高等优点。在巷道工程勘查中,该方法可有效反映巷道围岩内含水构造的空间分布和特征,为巷道水害防治提供依据。本文介绍了井巷瞬变电磁法的原理与实验过程,并将其应用于胶东地区金矿巷道超前探水工程中,对数据进行了处理与分析,为胶东地区金矿超前探水提供了科学依据。

Application of Mine transient electromagnetic method advanced prediction of a gold mine

With gold resources being gradually mined to the deep, roadway drivage engineering is facing with increasingly complex hydrogeological conditions, especially the frequent phenomenon of tunnel water gushing. The mine transient electromagnetic method is a main method of tunnel advanced geological forecast, which has small volume effect, being portable, simple construction and high resolving power of low resistance body, etc. In the exploration of tunnel engineering, this method can effectively reflect the surrounding rock of roadway, the spatial distribution and characteristics of the target body, and provides a basis for prevention and control of water disasters in coal mines. This paper introduces the principle and experimental process of the transient electromagnetic method in mine shaft, and applies it to the advanced water detection of gold mine in the Jiaodong area. The data was processed and analyzed, which provides a scientific basis for the gold exploration in the Jiaodong area.