利用探地雷达估算岩石-混凝土衬砌界面缺陷厚度

IF 0.7 4区工程技术 Q4 MINING & MINERAL PROCESSING

Journal of Mining Science Pub Date : 2024-09-01 DOI:10.1134/s106273912402008x

E. V. Denisova, K. O. Sokolov, A. P. Khmelinin, A. I. Konurin, D. V. Orlov

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引用次数: 0

摘要

摘要利用探地雷达研究混凝土结构内部层状缺陷。研究发现，GPR 信号的偏转系数模量随层厚和填充层材料（砂、湿砂或空气）的电磁特性而变化。实验和数值研究使用了峰-峰振幅比方法，从而确定了层上下边界的菲涅尔系数。GPR 记录的最小层厚为 2 毫米。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Estimating Thickness of Defects at Rock-Concrete Lining Interface by Ground-Penetrating Radar

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Estimating Thickness of Defects at Rock-Concrete Lining Interface by Ground-Penetrating Radar

Abstract

Ground-penetrating radar is used to study defects in the form of internal layers in concrete structures. It is found that modulus of deflection coefficient of GPR signals changes as function of the layer thickness and electromagnetic properties of the material filling the layer (sand, wet sand or air). The experimental and numerical research used the method of peak-to-peak amplitude ratio, which enabled determining the Fresnel coefficients for the upper and lower boundaries of a layer. The minimal layer thickness recorded by GPR was 2 mm.

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来源期刊

Journal of Mining Science 工程技术-矿业与矿物加工

CiteScore

1.70

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： The Journal reflects the current trends of development in fundamental and applied mining sciences. It publishes original articles on geomechanics and geoinformation science, investigation of relationships between global geodynamic processes and man-induced disasters, physical and mathematical modeling of rheological and wave processes in multiphase structural geological media, rock failure, analysis and synthesis of mechanisms, automatic machines, and robots, science of mining machines, creation of resource-saving and ecologically safe technologies of mineral mining, mine aerology and mine thermal physics, coal seam degassing, mechanisms for origination of spontaneous fires and methods for their extinction, mineral dressing, and bowel exploitation.