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Ground Penetrating Radar : Theory and Practice (Paperback) (Erica Carrick Utsi)
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Ground Penetrating Radar is a practical guide to using this powerful underground surveying technique. The author uses her wide experience to explain the critical factors in using GPR and how parameters such as wavelength, attenuation and loss need to be properly considered to obtain good survey results.
The first chapter introduces the underlying physics and explains the formation of signal patterning. The next two chapters explain the significance of wavelengths for target detection, probing depths, and resolution and demonstrate the variety of signal presentation. Chapter four discusses the why survey results are affected by water and air in the soil and how this may affect depth readings. Chapter five offers a variety of methods for velocity calibration and suggests where they may be useful. Chapter six describes challenging soil conditions and potential problem environments. Chapter seven provides a checklist of factors to consider when planning a survey. Chapter eight introduces data processing and provides a suite of useful techniques. Chapter nine provides an overview of antenna types and their common uses. Chapter ten discusses the formation and use of three dimensional data. The eleventh chapter discusses the wide range of uses for GPR, while chapter twelve provides eight case studies based on industrial examples for reader’s assessment. Chapter thirteen discusses the different types of systems currently available and their uses. Chapter fourteen offers a checklist for GPR reporting and publication; and chapter fifteen provides a brief guidance to regulations in place around the world. The main chapters are followed by a series of appendices which include recommendations for further reading, a glossary of common technical terms and an introduction to GPR associations.
Ground Penetrating Radar gives a clear and formative guidance on understanding the critical factors in using GPR, as well as a checklist of surveying considerations that will greatly benefit geotechnical and structural engineers, while field surveyors will find the case studies particularly useful. The fundamentals discussion and parameter setting guidance will help those involved in collecting and analyzing underground data in making better planning decisions in order to improve their survey results.
- Covers the critical practical factors in using a Ground Penetrating Radar, including troubleshooting as well as how to select the appropriate equipment for the project
- Explains why wavelengths matter and provides practice calculations
- Offers insight into how to spot ringing (echo effects) and air signals and distinguish these from subsurface data
- Enables the reader to understand the importance of calibration of transmission velocity and a range of methods