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| | Abstract | | Capillary barrier (CB) is a soil structure in which relatively fine-grained materials (sand, etc.) are arranged in layers on relatively coarse-grained materials (gravel, etc.). Due to the relative difference in water retention capacity of the soil in both layers, it has an excellent function of retaining the water infiltrated from the ground surface on the boundary surface and effectively blocking water. Breakthrough is when more water than can be held by the water-blocking function of the CB invades the fine-grained material (sand, etc.), it cannot be retained and the water flows to the coarse-grained material (gravel, etc.) Represents the phenomenon of This time, in order to understand the soil layer thickness and uneven infiltration phenomenon in the CB soil layer using the ground penetrating radar, which is one of the geophysical exploration methods, we will try to evaluate the effect on the wet phenomenon by non-destructive measurement. |
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