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地下工程灾害水源的磁共振探测研究

DOI: 10.6038/cjg20131103, PP. 3619-3628

Keywords: 地面磁共振探测,地下磁共振探测,准全空间,多匝线圈,自适应消噪

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Abstract:

地面磁共振探测(SurfaceMagneticResonanceSounding,SMRS)是近年来发展起来的一种地球物理新方法,这种在地面直接探测地下介质中氢核丰度的技术,不仅可以用于缺水地区的地下水资源勘查与评价,还可以在地下水引起的堤坝渗漏、滑坡、海水入侵等地质灾害水源的探测预警中发挥独特的作用.本文首次提出了地下磁共振探测方法(UndergroundMagneticResonanceSounding,UMRS),将SMRS方法引入到地下工程领域,实现隧道工程和煤矿开采等地下狭窄空间极端环境的探测.为应用UMRS方法,需要深入研究地下水超前探测理论、准全空间处理与反演方法、旋转多匝小线圈探测模式,强电磁干扰环境自适应噪声压制策略、以及复杂地质环境磁共振与瞬变电磁联合探测关键技术等难题.论文还简要介绍了超导磁探测技术和工程盾构及掘进实时探测等新技术在地下工程生产安全探测预警中的应用前景.

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