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Improved infiltration rate determination method for interlocking-block permeable pavements using standard ASTM test apparatus
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DOI：10.1080/10298436.2024.2423216.png)
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Abstract
En 中文
Current standard methods of measuring permeability of interlocking-block permeable pavements (IBPPs) do not correctly measure the actual infiltration rates of IBPPs. The test results vary with test area size and location. In this study, employing the standard ASTM-1781 test apparatus, an improved procedure that adopts an experiment-based numerical approach is developed to overcome the problem. It involves the following steps: (i) Perform falling-head infiltration tests using ASTM-1781 apparatus to obtain infiltration flow data; (ii) Develop computational fluid dynamic (CFD) finite-volume models for different infiltration test conditions; and (iii) Apply appropriate finite-volume model to calculate the effective IBPP infiltration rate under any given surface water depth on the IBPP. Experimental tests were conducted to validate the proposed method.
Keywords:
Interlocking-block permeable pavement
infiltration rate
hydraulic conductivity
finite-volume simulation model
falling head test
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3.3
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2.8K
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8.0K