International Journal of Alternative Fuels and Energy https://psmjournals.org/index.php/ijafe <p style="text-align: justify;">International Journal of Alternative Fuels and Energy (IJAFE; ISSN: 2523-9171)&nbsp; is a peer-reviewed, open access,&nbsp; international journal that considers articles on all aspects of alternative energy sources and allied sciences.</p> en-US ijafe@psmpublishers.org (International Journal of Alternative Fuels and Energy) info@psmpublishers.org (MANI MUGHAL) Mon, 31 Oct 2022 00:00:00 +0000 OJS 3.2.1.3 http://blogs.law.harvard.edu/tech/rss 60 Finite Element Analysis of Seepage and Exit Gradient underneath a Hydraulic Structure (Weir) by Using Geo-Slope (SEEP/W) Software https://psmjournals.org/index.php/ijafe/article/view/690 <p>In this study, a weir section of Runpur bund located in Sindh province of Pakistan was examined. A 2-dimensional model was generated using finite element based software Geo-Slope, SEEP/W. The model was run for two different cases i.e. (i) original design, and (ii) without sheet piles respectively. The study aims to calculate the amount of seepage (q) underneath the weir foundation and to calculate exit gradient (G<sub>E</sub>) for five different hydraulic heads i.e. EL 25m, EL 25.7m, EL 26.7m, EL 27.7m, and EL 28.7m respectively. The seepage results showed that at original design a normal behavior of the weir for various hydraulic heads was observed. The overall maximum resultant seepage quantity (q) 7.21x10<sup>-6 </sup>m<sup>3</sup>/sec/m and exit gradient (G<sub>E</sub>) 0.57 for the hydraulic head EL 28.7m respectively. However, abnormal behavior of the weir without sheet piles was observed with maximum resultant seepage quantity (q) 78.20x10<sup>-6 </sup>m<sup>3</sup>/sec/m and exit gradient (G<sub>E</sub>) 2.27 for the hydraulic head EL 28.7m respectively. It has been found that without the provision sheet piles the internal pore water pressure underneath the weir foundation was increased and the overall seepage and exit gradient will increase up to 90.78% and 74.88% respectively. Therefore, the weir is not safe without the installation of sheet piles.</p> <p>&nbsp;</p> Imran Arshad Copyright (c) 2022 PSM https://creativecommons.org/licenses/by-nc/4.0/ https://psmjournals.org/index.php/ijafe/article/view/690 Mon, 31 Oct 2022 00:00:00 +0000