1887

Abstract

Using a 2SD, dispersive, full waveform GPR modeling program that generates complete GPR response<br>profiles in minutes on a Pentium PC, the effects of leaking versus non-leaking buried pipes are examined. The<br>program accounts for the dispersive, lossy nature of subsurface materials to GPR wave propagation, and accepts<br>complex functions of dielectric permittivity and magnetic permeability versus frequency through Cole-Cole<br>parameters fit to laboratory data. Steel and plastic pipes containing a DNAPL chlorinated solvent, an LNAPL<br>hydrocarbon, and natural gas are modeled in a surrounding medium of wet, moist, and dry sand. Leaking fluids are<br>found to be more detectable when the sand around the pipes is fully water saturated. The short runtimes of the<br>modeling program and its execution on a PC make it a useful tool for exploring various subsurface models.

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/content/papers/10.3997/2214-4609-pdb.205.1996_058
1996-04-28
2020-08-13
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609-pdb.205.1996_058
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