Laboratory Study of Vertical and Inclined Sheet Pile Effects on Seepage Control and Sand Boiling Phenomenon through Alluvial Foundation of Hydraulic Structures | ||
| تحقیقات آب و خاک ایران | ||
| Article 8, Volume 46, Issue 1, April 2015, Pages 59-70 PDF (1012.71 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22059/ijswr.2015.54296 | ||
| Authors | ||
| Mehdi Yousefi* 1; Mohammad Sedghi Asl2; Mansoor Parvizi3 | ||
| 1M.A. student in Geotechnics, Yasuj University, Yasuj | ||
| 2Assistant Professor of Soil Science, Agricultural College, Yasouj University; Yasouj | ||
| 3Assistant Professor of Civil Engineering, Faculty of Engineering, Yasouj University; Yasouj | ||
| Abstract | ||
| So far, for an analysis of seepage under hydraulic structures much research has been conducted in the form of numerical models. However, few field and laboratory works have been performed to study the boiling phenomena for evaluating numerical models. Throughout the present work, a laboratory model was built to simulate seepage and its controlling measures under sheet piles. The model consisted of a 2.2 m long, 0.8 m deep and 0.4 m wide flume, in which vertical sheet piles were provided by Perspex sheets. The flume was made up of a steel frame, Perspex as well as thick glass sheets. The effect of position and depth of the sheet pile on the seepage flow, exit gradient and uplift pressure have been demonstrated in the form of dimensionless curves. The results indicate that the ratios d/D=0.44 and d/D=0.34 with a maximum upstream water level of h/hm=1.0 form the best possible depths, for both vertical and inclined sheet piles in the depth of the foundation sheet pile. In other words, inclined sheet piles are much more effective in reducing and controlling seepage, uplift pressure and hydraulic gradient than the vertical ones. | ||
| Keywords | ||
| alluvial foundation; Boiling; Hydraulic Structures; Sheet pile; Seepage | ||
| References | ||
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