Experimental dataset on sediment depths in scrutinizing the influences of downstream semi-circular obstacles on floods arising from the failure of dams with different levels of reservoir silting

In this file, all sediment depth data associated with 21 different dam break scenarios were extracted from high-quality experimental video images. The dataset is collected, classified and presented in a total of 21 distinct tables in 3 categories based on downstream initial conditions; 1- Downstream bed with a semi-circular obstacle with radius of 4.5 cm, 2- Downstream bed with a semi-circular obstacle with radius of 7.5 cm, and 3- Smooth downstream bed without any obstacle. Tables 1-7, present the sediment depth data at 20 different locations along the flume and 15 snap times after the dam break, while a semi-circular obstacle with radius of 4.5 cm was initially mounted on the downstream bed. Seven different upstream initial sediment depths (0.03, 0.075, 0.15, 0.175, 0.2, 0.22 or 0.24 m) are detailed in Table 1-7, respectively. These 7 initial upstream sediment depths make the upstream reservoir 10% to 80% silted-up with respect to the total 0.3 m height of the reservoir. Table 8-14 provide the sediment depth data at all abovementioned sections and snap times while a semi-circular obstacle with radius of 7.5 cm was initially mounted on the downstream bed. Seven different upstream initial sediment depths (0.03, 0.075, 0.15, 0.175, 0.2, 0.22 or 0.24 m) are detailed in Table 8-14, respectively. Table 15-21 show the sediment depth data at all sections and snap times while the downstream bed considered smooth and No obstacle was mounted on the downstream bed. Seven different upstream initial sediment depths (0.03, 0.075, 0.15, 0.175, 0.2, 0.22 or 0.24 m) are detailed in Table 15-21, respectively. The unit that has been used to measure data is centimeter and the abbreviations including and are the radiuses of downstream semi-circular obstacles and upstream initial sediment depth, respectively. Time refers to the snap times after sudden removal of the gate using second as a unit of measurement. It should be noted that the vertical column to the left of the tables indicates the distances of different locations in centimeters from the beginning point of the laboratory flume. So, the L column indicates all 20 distinct locations along the flume and their distances from the reservoir beginning, in centimeter as a unit of measurement. 1st Author: Foad Vosoughi, Research Associate, Department of Civil and Environmental Engineering, Shiraz University, Shiraz, Iran. [e-mail]

本数据集从高质量实验视频影像中提取了与21种不同溃坝场景相关的全部泥沙深度数据。数据集按照下游初始工况分为3大类，总计21张独立表格，具体分类如下：1. 下游床面带有半径4.5cm半圆形障碍物；2. 下游床面带有半径7.5cm半圆形障碍物；3. 无任何障碍物的光滑下游床面。
表格1至7展示了下游床面初始安装半径4.5cm半圆形障碍物时，实验水槽沿程20个不同测点以及溃坝后15个采样时刻的泥沙深度数据。表格1至7分别对应7种上游初始泥沙深度：0.03、0.075、0.15、0.175、0.2、0.22及0.24米。上述7种上游初始泥沙深度分别对应上游水库总高度0.3米的10%至80%淤积率。
表格8至14展示了下游床面初始安装半径7.5cm半圆形障碍物时，前述所有测点断面与采样时刻的泥沙深度数据，表格8至14分别对应前述7种上游初始泥沙深度。
表格15至21展示了下游床面为光滑无障碍物工况下，所有测点断面与采样时刻的泥沙深度数据，表格15至21分别对应前述7种上游初始泥沙深度。
本次数据测量采用厘米作为单位，相关缩写分别指代下游半圆形障碍物半径与上游初始泥沙深度。时间项以秒为单位，指代闸门突然开启后的采样时刻。需说明的是，表格左侧的纵向列代表各测点距实验室水槽起点的距离，单位为厘米。其中L列代表水槽沿程全部20个测点位置及其距水库起点的距离，单位统一为厘米。
第一作者：Foad Vosoughi，伊朗设拉子大学土木与环境工程系助理研究员，邮箱：[e-mail]