Optimal design of water-conveying canal considering seismic stability of side slopes

✍ Scribed by Rajib Kumar Bhattacharjya; Mysore G. Satish

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 253 KB
• Volume: 59
• Category: Article
• ISSN: 1531-0353
• DOI: 10.1002/ird.473

✦ Synopsis

Abstract

A new methodology is proposed in this study for determination of a cost‐effective canal section considering the seismic stability of homogeneous canal side slopes. In order to consider the seismic stability of canal side slopes, an external seismic slope stability model is required to incorporate with the canal optimization model. During the iterations for optimal solution, the canal optimization model uses the seismic stability model at every iteration. As a result, the efficiency of the combined model is mostly dependent on the efficiency of the seismic slope stability model. The computational efficiency of the combined model can be enhanced using an approximate model to check the stability of the side slope of the canal. Therefore, an artificial neural network (ANN) model is used in this study to approximate the seismic slope stability model. The developed ANN model is linked externally with the canal optimization model to obtain the dimensions of the cost‐effective canal section with seismic‐resistant side slopes. Pseudo‐static analysis is carried out for evaluation of the seismic stability of the slope. An example problem is solved to demonstrate the field applicability of the developed model. Copyright © 2009 John Wiley & Sons, Ltd.