Inversion, Modelling and Analysis of GPR in Near-surface Environments (IMAGINE) version 2

近地表环境中探地雷达的反演、建模和分析 (IMAGINE) 第 2 版

• 批准号: EP/E004032/1
• 负责人: Nigel Cassidy
• 金额: $ 27.78万
• 依托单位: Keele University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE004032%2F1
• 关键词: Inversion; Modelling; Analysis; GPR; Near

Ground penetrating radar (GPR) is one of the most popular ground investigation techniques with, arguably, the widest application range of all the geophysical methods. It has been applied to landmine detection, the location and evaluation of building structures and materials, contaminant mapping plus general glacial, geological, archaeological, forensic and environmental applications. With an unrivalled ability to 'image' the shallow sub-surface at high-resolutions, the technique is the tool of choice for many geotechnical engineers and is the principle investigation method for near-surface problems. Unfortunately, the evaluation, interpretation and analysis of GPR data is a hit-and-miss affair, particularly in complex environments and advanced processing, imaging and/or visualisation techniques are often required before even the most basic interpretations are made. Many of these methods add unwanted bias or error into the data and there is a pressing need for new data analysis methods that are robust, accurate and efficient. Numerical Modelling (which simulates the propagation of the GPR waves in the ground) and Inversion (which attempts to automatically determine the shape, location and properties of a buried target from the recorded GPR signals) have both been successfully applied to real and experimental near-surface GPR data over a range problem senorios. This project will attempt to integrate these two methodologies into a single programme of research that will develop, new innovative solutions to the problem of GPR data interpretation whilst providing users with a robust, sophisticated alternative to more conventional analysis techniques. The work will focus on the key application areas of landmine detection/discrimination, services mapping (particularly leaking non-metallic fuel, water and sewage pipes) and the identification, location and characterisation of buried building foundations and similar structures. The work will utilise data collected from real-world situations with the goal of producing an analysis and interpretation technique that is practical, efficient and comprehensively tested. There are clear benefits to improving our ability to evaluate and characterise the subsurface, both economically and socially. For example, it is estimated that the cost associated with drinking water loss from leaky pipes alone is in the order over ten million pounds a year. Enhanced investigation techniques can go a long to reducing this cost. Ultimately, the project represents a new and exciting development in geotechnical GPR research with potential benefits that reach far beyond the confines of the engineering community into fields as diverse as archaeology, biotechnical sciences and forensics.

探地雷达(GPR)是地球物理方法中应用最广、应用最广泛的一种地面勘察技术。它已被应用于地雷探测、建筑结构和材料的定位和评估、污染物测绘以及一般冰川、地质、考古、法医和环境应用。该技术具有无与伦比的高分辨率浅层地下成像能力，是许多岩土工程师的首选工具，也是近地表问题的主要研究方法。不幸的是，对探地雷达数据的评价、解释和分析是一件偶然的事情，特别是在复杂的环境中，甚至在做出最基本的解释之前，往往需要先进的处理、成像和/或可视化技术。其中许多方法给数据增加了不必要的偏差或误差，迫切需要健壮、准确和高效的新数据分析方法。数值模拟(模拟探地雷达波在地面中的传播)和反演(试图从记录的探地雷达信号中自动确定埋藏目标的形状、位置和性质)都已成功地应用于距离问题传感器上的真实和实验近地表探地雷达数据。该项目将尝试将这两种方法整合到一个单一的研究方案中，该方案将为探地雷达数据解释问题开发新的创新解决方案，同时向用户提供更传统分析技术的可靠、复杂的替代方案。这项工作将侧重于地雷探测/识别、服务测绘(特别是泄漏的非金属燃料、供水和污水管道)以及地下建筑物基础和类似结构的识别、定位和特征等关键应用领域。这项工作将利用从现实世界收集的数据，目标是产生一种实用、高效和全面测试的分析和解释技术。提高我们评估和描述地下世界的能力，无论是在经济上还是社会上，都有明显的好处。例如，据估计，仅与漏水管道造成的饮用水损失相关的成本每年就高达1000多万英镑。改进的调查技术对降低这一成本大有裨益。归根结底，该项目代表着岩土地质雷达研究领域令人振奋的新发展，其潜在好处远远超出工程界的范围，涉及考古学、生物技术科学和法医学等多个领域。

项目成果

Interpreting complex, three-dimensional, near-surface GPR surveys: an integrated modelling and inversion approach

• DOI: 10.3997/1873-0604.2010010
• 发表时间: 2011-06
• 期刊: Near Surface Geophysics
• 影响因子: 1.6
• 作者: T. M. Millington;N. Cassidy;L. Nuzzo;L. Crocco;F. Soldovieri;J. Pringle

BISTATIC TOMOGRAPHIC GPR IMAGING FOR INCIPIENT PIPELINE LEAKAGE EVALUATION

用于初期管道泄漏评估的双基地层析探地雷达成像

• DOI: 10.2528/pier09122206
• 发表时间: 2010
• 期刊: Progress In Electromagnetics Research
• 作者: Crocco L

Modelling and inversion of ground penetrating radar

探地雷达建模与反演

• 发表时间: 2011
• 作者: Millington Timothy M.

Frequency-dependent attenuation and velocity characteristics of nano-to-micro scale, lossy, magnetite-rich materials

纳米到微米级、有损、富含磁铁矿材料的频率相关衰减和速度特性

• DOI: 10.3997/1873-0604.2008023
• 发表时间: 2008
• 期刊: Near Surface Geophysics
• 影响因子: 1.6
• 作者: Cassidy N