Investigating the Effect of the Water-Sealing Element of the Bed of the Ghadroni Dam Reservoir on the Control of Water seepage using a Physical Model and comparing it with a Numerical Model
Subject Areas :MOHSEN AMIRI 1 * , MEHDI MOMENI 2 , HOSEIN JALALI 3
1 - PH.D student Islamic Azad University
2 - Department of Civil Engineering, Islamic Azad University, Kerman Branch
3 - PhD in Structures from the University of Paris, Former Professor of Sharif University of Technology , University of Tehran , Tarbiat Modares University
Keywords: ", physical model", , ", numerical model", , ", dam reservoir bed sealing", , ", clay blanket", ,
Abstract :
Qadroni Reservoir Dam is located in Kerman . This concrete dam was built at a height of 44 meters above sea level with a reservoir volume of 42 million cubic meters. The reservoir bed is placed on limestone formations with medium to high permeability. In order to control the water seepage of the reservoir it was decided to make an impermeable blanket with two layers of soil cement and clay . A clay layer with a thickness of 30 cm is planned to control the amount of water seepage and two upper and lower layers of cement soil with a thickness of 30 cm each, with the aim of preventing clay particles from being washed into the alluvium and erosion and cracking of the top of the clay materials. In this research, the performance of this particular blanket has been investigated using a three-dimensional numerical model, and a physical model has been made according to the materials, dimensions, and actual boundary conditions and has been tested for a long time. In the physical model, despite long-term loading, the efficiency of the blanket is not reduced, and after a while, the amount of water seepage reaches a constant value. In both numerical models, the results overlap well. This research is unique in its type due to the innovation in the shape of water seal blanket and the construction of its physical model with real dimensions.