IMPROVING THE STRENGTH OF SANDY SILT SOILS BY MIXING WITH CEMENT KILN DUST | ||
| JES. Journal of Engineering Sciences | ||
| Article 4, Volume 41, No 4, July and August 2013, Pages 1421-1431 PDF (887.07 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2013.114863 | ||
| Authors | ||
| Mohie ElMashad1; AHMED S. HASHAD* 2 | ||
| 1Construction Research Institute, National Water Research Center, Egypt | ||
| 2Construction Research Institute, Delta Barrages, Egypt | ||
| Abstract | ||
| Egyptian irrigation and drainage system consists of the River Nile, its branches, canals and drains. It is very important to keep them working in good condition to assure efficient water management and distribution process. Water channel embankments made of sandy silt soils are exposed to slope stability problems. These problems are considered one of the common canal embankments problems in the delta of Nile River. Soil improvement is one of the most economic engineering solutions to overcome soil problems. This research studying the improving of sandy silt soils by mixing with cement kiln dust. Laboratory tests were carried out to evaluate the improved soil properties. Three numerical models were built for an embankment of a canal to examine the introduced method to overcome slope stability problems. The natural soil slope stability safety factor was calculated from the first numerical model. The second model used to calculate safety factor after applying the improved soil properties that were determined from the laboratory works. The third numerical model was built to simulate improving natural soil by using the traditional soil reinforcement technique. The results for the two improvement methods were compared. The results showed that the proposed method caused significant improvement for slope stability of the sandy silt soil. The proposed method has the advantage of using with existing or new structures. | ||
| Keywords | ||
| Soil improvement; soil mixing; cement dust; slope stability; barrages | ||
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