Optimizing the design of the earth dam body by performing quasi-static and dynamic analyzes using Plaxis software (Case study: Droodzen Dam)

Subject Areas : watere sciences

Masoud Mesbahi ¹ , Majid Abbasizadeh ² , Mohammadreza Nikmanesh ³

1 - Department of Civil Engineering, Faculty of Engineering, Arsanjan Branch, Islamic Azad University, Arsanjan, Iran
2 - Assistant Professor, Department of Watershed Management, Faculty of Agriculture and Natural Resources, Arsanjan Branch, Islamic Azad University, Arsanjan, Iran
3 - Assistant Professor, Department of Civil Engineering, Faculty of Engineering, Arsanjan Branch, Islamic Azad University, Arsanjan, Iran

Received: 2023-06-06 Accepted : 2023-10-06 Published : 2024-02-11

Keywords: Optimization, Dynamic Analysis, Plaxis software, Droodzen earth dam, quasi-static analysis,

Abstract :

One of the effective and very important factors in the stability of earth dams is the shear resistance of earth materials in the body and foundation of the dam, and damages caused by the sliding of earth slopes can cause irreparable damage to an earth dam. Considering the importance of earth slopes, the effect of static forces and earthquakes on its stability is extremely important. In this research, the optimization of the design of the Droodzen earth dam body is done by performing quasi-static and dynamic analyzes using Plaxis software. Based on the obtained results, geocell reinforcements increase the safety factor of dam stability and reduce the lateral deformation of the slope due to tensile strength and bending anchor. Also, by increasing the depth of the geocell placement, the tensile strength and bending moment of reinforcing increases, and by reducing the length of the geocell cover, the shear resistance of the top and bottom joint of the geocell decreases. Finally, we should mention that soil compaction leads to a significant increase in tensile force and bending moment along the length of the geocell layer.