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| | 講演要旨(英文) | | Low and non-metallic landmines are one of the most difficult subsurface targets to be detected using geophysical techniques. GPR technique shows great success in detecting metallic landmines. However significant limitations are taking place in the case of non-metallic (plastic) landmines. Electrical Resistivity Tomography (ERT) technique is tested to be an alternative or confirmation technique for clearing assurance of the suspicious landmine contaminated areas. The electrical resistivity responses using forward modeling for metallic and plastic landmines buried in dry and wet environments utilizing the common electrode configurations have been achieved. Roughly all the utilized electrode arrays can establish the buried metallic and plastic mines correctly in dry and wet soils. The accuracy differs from one array to the other based on the subsurface distribution of current and potential lines as well as the amplitude of the noises in the data. |
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