نوع مقاله : یادداشت فنی
نویسندگان
1 بخش مهندسی آب ، دانشگاه شیراز
2 دانشکده مهندسی عمران، دانشگاه آزاد اسلامی واحد استهبان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Erodibility of soil is one of the most important factors when dealing with water based projects, such as earthen water canals, earthfill dams and other hydraulic structures. Erosion is the cause of much canal, dam or levee failure and its consequent loss of life and money. Thus, soil erosion has always been a field of interest among hydraulic and civil engineers, and much research has been undertaken in an attempt to find different methods of controlling this phenomenon. Stabilizing soil with chemical additives is the most common method of controlling erosion in fine grained soils, and different stabilizers with different stabilizing mechanisms are produced and used even now. CBR+, also known as CON-AID, is a nanotechnology product designed for stabilizing poor quality soils containing clayey material. This anionic soil stabilizer, originated from petroleum, is a viscous, deep red color liquid, with no smell or taste, which works on the basis of ion exchange. In this study, the effect of this product on the erosional behavior of clayey soils is investigated. For this purpose, specimens stabilized using different amounts of CBR+ were prepared and, after curing periods of 7, 14 and 21 days, their erosional behavior was compared with that of non-stabilized ones. Erosion tests were performed using a submerged jet erosion device (JET). According to the results obtained, different erosional behaviors are obtained when using equivalent values of 0.005, 0.007 and 0.009 litres of CBR+ per 0.15 cubic meters of tested soil. These behaviors vary in procedures of variations of erosion curve, mean erodibility coefficient (
کلیدواژهها [English]
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