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:: Volume 13, Issue 41 (7-2018) ::
jwmseir 2018, 13(41): 105-114 Back to browse issues page
Laboratory Evaluation of the Effect of Modifier Materials on the Increase of Resistance in Fine Grained Soils in Khuzestan
Seyed Ahmad Hosseini , Foroud Sharifi , Mahmoud Raeini , Mohammad Ali Gholami
Soil Conservation and Watershed Management Research Institute
Abstract:   (1394 Views)

Some methods of erosion control in the steep slope of the lateral sidewall of the earth's structures include the use of biological mulch and natural remedies in this study was investigated. In this paper, with the aim of determining the type and the most suitable aggregate of this materials on soil erosion resistance parameters, on the lateral wall of irrigation and drainage channels of Arayez plain of Khuzestan, the required experiments were carried out in the rain simulator lab of the Soil Conservation and Watershed Management Institute. So that using at least 290 experiments on soil samples of the studied region, using 15 types of modifying agents and biological mulch, as well as the most appropriate combination of them, were carried out. In the following experimental treatments on a flume with lateral slope of 1 to 1.25 similar to normal slope of drains, were simulated using 30 and 80 mm / h rain intensity. The results showed that all of mulch treatments and cement mortar treatments, anti-sulfate cement, cement grout and lime and clay mixtures had a significant effect on sediment yield reduction in comparison with control treatment, and confirmed that these treatments have an effective role in controlling erosion from lateral walls of drainage canals. It was shown that mulch No. 1 had the greatest effect on decreasing the erosion rate of drainage channel walls (up to about 89%). In treatments of soil reformers, antisulfate cement slurry treatment had the best effect on sediment deposition of up to 98%. Therefore, polypropylene fiber melt treatment and lime saturation treatment not only do not decrease sediment, but the combined application of these materials in comparison with control treatment can increase the sediment by about 15 times.
 

Keywords: Bio Mulch, Drainage, Erosion, Lime, Polypropylene fibers, Rainfall Simulation, Runoff and Sediment, Water and Lime Saturated Solution, Water and Plaster Saturated Solution.
Full-Text [PDF 1030 kb]   (254 Downloads)    
Type of Study: Research | Subject: Special
Received: 2016/09/5 | Accepted: 2016/10/29 | Published: 2018/07/19
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Hosseini S A, Sharifi F, Raeini M, Gholami M A. Laboratory Evaluation of the Effect of Modifier Materials on the Increase of Resistance in Fine Grained Soils in Khuzestan. jwmseir. 2018; 13 (41) :105-114
URL: http://jwmsei.ir/article-1-667-en.html


Volume 13, Issue 41 (7-2018) Back to browse issues page
مجله علوم ومهندسی آبخیزداری ایران Iranian Journal of Watershed Management Science and Engineering
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