The formation and reestablishment of bed structural properties in the static armor layer is an important research subject. To address this issue, we conducted a series of static armor layer experiments in a laboratory flume that focused on formation and reestablishment. Through an automatic measurement system, we obtained a real-time bed load transport rate. The bed surface elevation at different flow intensities was obtained using a PTS (Photo Terrain Scanning) system. The results show that the formation and reestablishment of the bed load transport rate in the static armor layer increased from zero to its peak before decaying. The bed structure response was found to be highly dependent on the unevenness of the bed surface elevation. The bed surface elevation of a static armor layer in a laboratory flume is considered as a two-dimensional random field. In a two-dimensional random field, the changes in bed elevation are characterized using statistical parameters. Statistical parameters are evaluated from precise digital elevation models (DEMs) of bed surfaces. Experimental results provide the change of probability distribution functions (PDFs) and second-order structure functions of bed elevations between formation and reestablishment after breaking the static armor layer. By quantitatively analyzing the changes in these statistical parameters, we quantified the difference between the bed structure in the static armor layer formation and the new static armor layer formed after being broken. Thus, this finding reveals that the bed structure of the static armor layer formed by different flow intensities is different, and this difference can be quantified using statistical methods.

中文翻译：

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砾石河床形成和重建过程中静甲的结构特性

静态装甲层中床层结构特性的形成和重建是一个重要的研究课题。为了解决这个问题，我们在实验室水槽中进行了一系列静态装甲层实验，重点是形成和重建。通过自动测量系统，我们获得了实时的床载运输率。使用 PTS (Photo Terrain Scanning) 系统获得不同流动强度下的床面高程。结果表明，静态装甲层中床载传输速率的形成和重建从零增加到衰减前的峰值。发现床层结构响应高度依赖于床面高程的不平整度。实验室水槽中静态防护层的床面高程被认为是二维随机场。在二维随机场中，使用统计参数表征床高的变化。统计参数是根据床面的精确数字高程模型 (DEM) 进行评估的。实验结果提供了破坏静态防护层后地层高程在形成和重建之间的概率分布函数（PDF）和二阶结构函数的变化。通过对这些统计参数的变化进行定量分析，我们量化了静态装甲层形成中的床层结构与破碎后形成的新静态装甲层之间的差异。因此，