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The Experimental Analysis of Incipient Motion Condition of Nonuniform Sediment
Rivers are important geological agents for erosion, transportation and deposition. In rivers, sediment transport is a very critical and complex phenomenon as far as Civil Engineering problems are concerned. Some of the problems are land erosion, soil conservation, silting of reservoir, floods, meandering of rivers, local scour, stable channel, etc. To understand sediment transport very thoroughly one need to understand the incipient motion of the sediment and sediment properties. The studies carried previously shows that the incipient motion condition of particle influenced by the particle size only. This research paper emphasizes on the experimental findings of slope dependency on incipient motion condition of nonuniform sediment. The nine sand samples of non-cohesive nonuniform sediment were prepared with different gradation and used in this experiment. The experiments were carried in the 10 m long, 0.30 m wide and 0.45 m deep tilting flume. The flume slope adjusted as per the decided slopes 0.001–0.0035. In the center of the flume the test section of 1.0-m long, 0.30-m-wide and 0.10-m deep was provided for placing the sediment sample. Critical shear stress was computed for various samples and various flow conditions. The critical shear stress was ranged between 0.04 and 0.08 N/m2. The effect of various parameters on incipient motion condition of nonuniform sediment was studied with the help of experimental data. The relationship of slope and critical shear stress of nonuniform sediment at incipient motion was studied.
The Experimental Analysis of Incipient Motion Condition of Nonuniform Sediment
Rivers are important geological agents for erosion, transportation and deposition. In rivers, sediment transport is a very critical and complex phenomenon as far as Civil Engineering problems are concerned. Some of the problems are land erosion, soil conservation, silting of reservoir, floods, meandering of rivers, local scour, stable channel, etc. To understand sediment transport very thoroughly one need to understand the incipient motion of the sediment and sediment properties. The studies carried previously shows that the incipient motion condition of particle influenced by the particle size only. This research paper emphasizes on the experimental findings of slope dependency on incipient motion condition of nonuniform sediment. The nine sand samples of non-cohesive nonuniform sediment were prepared with different gradation and used in this experiment. The experiments were carried in the 10 m long, 0.30 m wide and 0.45 m deep tilting flume. The flume slope adjusted as per the decided slopes 0.001–0.0035. In the center of the flume the test section of 1.0-m long, 0.30-m-wide and 0.10-m deep was provided for placing the sediment sample. Critical shear stress was computed for various samples and various flow conditions. The critical shear stress was ranged between 0.04 and 0.08 N/m2. The effect of various parameters on incipient motion condition of nonuniform sediment was studied with the help of experimental data. The relationship of slope and critical shear stress of nonuniform sediment at incipient motion was studied.
The Experimental Analysis of Incipient Motion Condition of Nonuniform Sediment
Lecture Notes in Civil Engineering
Timbadiya, P. V. (editor) / Patel, P. L. (editor) / Singh, Vijay P. (editor) / Barman, Bandita (editor) / Kulkarni, Deepali Rahul (author) / Bhalerao, Anand (author)
International Conference on Hydraulics, Water Resources and Coastal Engineering ; 2021
2023-06-27
14 pages
Article/Chapter (Book)
Electronic Resource
English
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