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径流小区清池时,量水池中泥砂测量习惯区分湿砂和糊泥进行称重,并部分采样分析干砂率,实际存在代表性差的问题。本文介绍按满桶泥砂称重测量,同时完成泥砂体积测量,实现全部样本分析干砂率或含砂率。引入介质特征和测量特征描述参数,在有效测量范围,建立采集桶分析数学模型。可用于径流小区清池泥砂测量,或在泥砂数量较多时,减少测量误差,且现场测量操作简单。
Runoff plot Qingchi, the amount of sediment measurement ponds used to distinguish between wet sand and paste for weighing, and some sampling and analysis of dry sand rate, the actual existence of poor representation. This article describes the full bucket of sediment weighing measurement, while the completion of sediment volume measurement, to achieve all samples of dry sand rate or sand content. Introducing the media characteristic and the measurement characteristic description parameter, establishing the mathematic model of collection barrel in the effective measuring range. It can be used for sediment measurement of runoff ponds or to reduce measurement errors when the amount of sediment is large, and the operation on site is simple.