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Survey: ASTM D3385-18 — Standard Test Method for Infiltration Rate of Soils in Field Using Double‑Ring Infiltrometer

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Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer1 astm d338518 pdf

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The double-ring infiltrometer addresses this through the "buffer ring" principle. An outer ring is used to saturate the soil around an inner ring. The theory posits that the water flowing laterally from the inner ring is countered by the hydraulic head of the water in the outer ring. Consequently, the flow from the inner ring is forced to move primarily in a vertical direction. Therefore, the measurement of water level drop within the inner ring provides a more accurate estimation of vertical infiltration capacity. Survey: ASTM D3385-18 — Standard Test Method for