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- W607363764 abstract "The authors discuss the technique reported by P J Leggs and C Leech published in Ground Engineering in January 1983 suggesting that ground probing radar is not, at its present state of development, suitable for the investigation of shallow abandoned mine workings. They quote results by Darracott and Lake and some of their own work, to show that maximum penetration is not likely to be more than about 3 m. The lack of success is thought to be due to the structural and lithological complexity of the bedrock underlying the site. Present radar systems receive reflections from a relatively wide cone producing a very complex pattern of reflections. It is pointed out that some geological control is necessary to interpret the results of ground probing radar surveys. The present state of the radar technique is such that the amount of geological control needed in shallow mines constitutes a comprehensive investigation in itself rendering radar probing superfluous. For the abstract of the paper by Leggs and Leech see IRRD 279188. (TRRL)" @default.
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- W607363764 date "1985-03-01" @default.
- W607363764 modified "2023-09-26" @default.
- W607363764 title "DISCUSSION ON SUB-SURFACE INVESTIGATION FOR SHALLOW MINE WORKINGS AND CAVITIES BY GROUND IMPULSE RADAR TECHNIQUES" @default.
- W607363764 hasPublicationYear "1985" @default.
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