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]