Permeable pavement is a stormwater control measure commonly selected in both new and retrofit applications. However, there is limited information about the clogging mechanism of these systems that effects the infiltration. A permeable pavement site located at the Seitz Elementary School, on Fort Riley, Kansas was selected for this study. An 80-space parking lot was built behind the school as part of an EPA collaboration with the U.S. Army. The parking lot design includes a permeable interlocking concrete pavement section along the downgradient edge. This study monitored the clogging progress of the pavement section using twelve water content reflectometers and three buried tipping bucket rain gauges. This clogging dynamic investigation was divided into three stages namely pre-clogged, transitional, and clogged. Recorded initial relative water content of all three stages were significantly and negatively correlated to antecedent dry weather periods with stronger correlations during clogged conditions. The peak relative water content correlation with peak rainfall 10-min intensity was significant for the water content reflectometers located on the western edge away from the eastern edge; this correlation was strongest during transition stage. Once clogged, rainfall measurements no longer correlated with the buried tipping bucket rain gauges. Both water content reflectometers and buried tipping bucket rain gauges showed the progress of surface clogging. For every 6 mm of rain, clogging advanced 1 mm across the surface. The results generally support the hypothesis that the clogging progresses from the upgradient to the downgradient edge. The magnitude of the contributing drainage area and rainfall characteristics are effective factors on rate and progression of clogging.

中文翻译：

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使用嵌入式传感器研究透水路面系统的堵塞动态

透水路面是一种雨水控制措施，通常在新应用和改造应用中选择。然而，关于影响渗透的这些系统的堵塞机制的信息有限。本研究选择了位于堪萨斯州赖利堡的 Seitz 小学的可渗透路面。作为 EPA 与美国陆军合作的一部分，在学校后面建造了一个 80 个车位的停车场。停车场设计包括沿下坡边缘的可渗透的互锁混凝土路面部分。本研究使用十二个含水量反射计和三个埋设的翻斗雨量计监测路面部分的堵塞进展。本次堵塞动态调查分为预堵塞、过渡、堵塞三个阶段。记录的所有三个阶段的初始相对含水量与之前的干旱天气期显着负相关，在堵塞条件下相关性更强。对于位于远离东部边缘的西部边缘的含水量反射计，峰值相对含水量与峰值降雨10分钟强度的相关性显着；这种相关性在过渡阶段最强。一旦堵塞，降雨量测量就不再与埋入的翻斗雨量计相关。含水量反射计和埋地翻斗雨量计都显示了表面堵塞的进展。每下 6 毫米的雨，整个表面就会发生 1 毫米的堵塞。结果通常支持堵塞从上升到下降边缘的假设。