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:: Volume 4, Issue 11 (7-2010) ::
jwmseir 2010, 4(11): 35-40 Back to browse issues page
The Effect of Cutoff on River Erosion and Aggradation Using MIKE11 Model (Case Study: Dare- Gap River)
Ali Salajegheh * , Samaneh Razavi zadeh , Amir hossein Yaghobi , Firoz Bahadori Khosroshahi
Abstract:   (15740 Views)

Dare- Gap River in the north of Booshehr province of Iran, in the reach of study, has a meandering pattern.

Most of the arcs are left wise in the reach of study that caused to increase water level during flood

events through the city. To solve this problem, it was supposed, if the arcs are omitted by making three

cutoffs in designed path, river slope, flow velocity and also river erosion potential will increase. Then the

average of annual erosion, aggradation and also the maximum depth of erosion and aggradation for

designed flood were studied for two paths existing path and artificial path, by using MIKE 11 model.

Results showed that the maximum erosion for annual flows occured in two reaches with bridges in them.

The amount of erosion in Kamarbandi Bridge was more than Main Bridge. And also deeper erosion was

observed in the designed path than existing path. In the Dare- Gap River in the kamarbadni Bridge, results

of the maximum depth of erosion and aggradation in the case of designed flood (100- years Flood) showed

that the maximum erosion in the designed path and for former path, was 0.65 and 0.78 meters, respectively.

Keywords: Cutoff, Erosion, Aggradation, Dare- Gap River and MIKE11 Model
Full-Text [PDF 1678 kb]   (2232 Downloads)    
Type of Study: Research | Subject: Special
Received: 2013/02/26 | Accepted: 2014/05/25 | Published: 2014/05/25
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Salajegheh A, razavi zadeh S, Yaghobi A H, Bahadori Khosroshahi F. The Effect of Cutoff on River Erosion and Aggradation Using MIKE11 Model (Case Study: Dare- Gap River). jwmseir 2010; 4 (11) :35-40
URL: http://jwmsei.ir/article-1-145-en.html


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Volume 4, Issue 11 (7-2010) Back to browse issues page
مجله علوم ومهندسی آبخیزداری ایران Iranian Journal of Watershed Management Science and Engineering
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