NDLI: Subsurface water-filled fracture detection by borehole radar: a case history

Content Provider	IEEE Xplore Digital Library
Author	Sixin Liu Zhaofa Zeng Sato, M.
Copyright Year	2005
Description	Author affiliation: Dept. of Geophys., Jilin Univ., Changchun, China (Sixin Liu; Zhaofa Zeng)
Abstract	Borehole radar is a special mode of ground penetrating radar. It has several distinguished features from surface radar. For examples, by means of borehole access to deep regions below the surface, the radar sonde can be located relatively close to the anomalies or targets to be measured, this results in more precise targets response than surface measurement. The experimental site is located on the top of a granite hill west of Beijing, China. There are a group of boreholes intersected by many fractures. The measured single-hole reflection data are processed and interpreted. The radial detecting range is more than 30 meters at this site. The subsurface fracture distribution can be imaged very clearly. Many fractures can be "seen", and their distance from borehole and their dip angle can be determined. The azimuth determinations for these fractures are possible in some situations. It is concluded that the borehole radar is an effective tool for subsurface imaging.
File Size	994260
File Format	PDF
ISBN	0780390504
DOI	10.1109/IGARSS.2005.1526182
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-29
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radar detection Computer aided software engineering History Ground penetrating radar Geologic measurements Geophysical measurements Radar imaging Optical reflection Azimuth Surface cracks
Content Type	Text
Resource Type	Article

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