Experimental dataset on water levels 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 water level data associated with 24 different dam break scenarios were extracted from high-quality experimental video images. The dataset is collected, classified and presented in a total of 24 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 1-8, present the free surface water level 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. A clear water reservoir (without sediment) as well as 7 different initial sediment depths (0.03, 0.075, 0.15, 0.175, 0.2, 0.22 or 0.24 m) are detailed in Table 1-8, respectively. These 8 initial upstream sediment depths make the upstream reservoir 0% to 80% silted-up with respect to the total 30 cm height of the reservoir. Table 9-16 provide the free surface water level 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. A clear water reservoir (without sediment) as well as 7 different initial sediment depths (0.03, 0.075, 0.15, 0.175, 0.2, 0.22 or 0.24 m) are detailed in Table 9-16, respectively. Table 17-24 show the free surface water level data at all sections and snap times while the downstream bed considered smooth and No obstacle was mounted on the downstream bed. A clear water reservoir (without sediment) as well as 7 different initial sediment depths (0.03, 0.075, 0.15, 0.175, 0.2, 0.22 or 0.24 m) are detailed in Table 17-24, 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.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24种不同溃坝场景相关的水位数据。本数据集按照下游初始工况划分为三大类别，共包含24个独立表格：1. 下游床面带有半径4.5cm的半圆形障碍物；2. 下游床面带有半径7.5cm的半圆形障碍物；3. 无任何障碍物的光滑下游床面。表格1至8展示了下游床面初始安装半径4.5cm半圆形障碍物时，水槽沿线20个不同位置以及溃坝后15个抓拍时刻的自由表面水位数据。其中表格1至8分别对应清水库（无泥沙）以及7种不同初始泥沙淤积深度（0.03、0.075、0.15、0.175、0.2、0.22或0.24m），上述8种上游初始泥沙淤积深度可使总高度为30cm的上游水库库容分别达到0%至80%的淤积率。表格9至16展示了下游床面初始安装半径7.5cm半圆形障碍物时，前述所有测点位置与抓拍时刻的自由表面水位数据，其中表格9至16分别对应清水库（无泥沙）以及7种前述初始泥沙淤积深度。表格17至24呈现了下游床面为光滑无障碍物工况下，所有测点位置与抓拍时刻的自由表面水位数据，其中表格17至24分别对应清水库（无泥沙）以及7种前述初始泥沙淤积深度。本数据集采用厘米作为水位数据的测量单位，文中所用缩写分别指代下游半圆形障碍物的半径与上游初始泥沙淤积深度。时间以秒为单位，代表闸门突然撤除后的抓拍时刻。需说明的是，表格左侧的纵向列代表各测点距离实验室水槽起点的厘米级距离，其中L列代表水槽沿线全部20个测点及其距水槽起始端的距离，单位为厘米。作者：Foad Vosoughi，设拉子大学土木与环境工程系研究助理，伊朗设拉子。邮箱：[e-mail]