The steady seepage condition is therefore critical for the d/s slope of the earth dam.

Firstly, You need 2 software 1.

Just as said it isn't easy to analyze the earthen dam for stability but its fun to play around when you have a lot of computing power at your disposal. Seepage Analysis of Gangapur, the Earthen Dam Using Geo-Studio Software 1 Jitendra Kachare, 2Seema Jagtap 1Yadavrao Tasgaonkar college of Engineering and Management Bhivpuri road Karjat 2Assistant Professor and Head of department, Thakur college of Engineering and Technology, Mumbai Abstract -The main purpose of this study is to find out the seepage loss through the earthen dam. If an impermeable cutoff is installed to 60 % of the depth of the permeable foundation, the flow net and downstream slope gradient is only slightly modified to a lower level.

Autocad 2. Flows from ground-water springs in existence prior to the reservoir would probably increase due to the pressure caused by the pool of water behind the dam. By using the same mesh for stress analysis including sequential embankment construction, it is possible …

Seepage Through Earthen Dams. Wet areas downstream from dams are not usually natural springs, but seepage through or under the dam. The physical model of an earth dam was constructed in a seepage and permeability model to investigate the behavior of seepage through the earth dam. The seepage analysis is based on a residual flow scheme involving saturated and unsaturated zones in which the original mesh remains invariant during transient flow and iterations. Two permeable perforated membranes were rigid fixed in the model before and after the soil to prevent it from getting through, as shown in Fig.

All dams … Therefore, the need for the dam to be safe and stable requires a good design and analysis of seepage problems. Seepage analysis of earth dams is a major concern in geotechnical engineering. The seepage forces are directed inward into the body of the dam on the u/s side and hence increases the stability of the u/s slope. Purpose of Seepage Analysis Dams must be designed and maintained to safely control seepage. A finite element procedure is developed for stress, seepage and stability analysis of dams and earthbanks.

However, on the d/s side, the seepage forces are directed outward and hence aid the gravity forces in decreasing the stability of the d/s slope. An earth dam constructed without a cutoff on permeable or semi-permeable foundations of earth or rock may lead to seepage beneath the dam creating unacceptable uplift pressures and causing instability. Even if natural springs exist, they should be treated with suspicion and carefully observed. Seepage … Excessive seepage leads to dam safety issues, if not treated carefully.

It was equipped with 27 piezometers to measure the pore water pressure in steady state experiments. Here is how we completed the assignment of analysis of an earthen dam, the Digital Engineering Jugaad Way!
Seepage and Slope Stability Analysis of Earthen Dam: A Case Study of Koga Dam, Ethiopia Amanuel Zewdu Department of Hydraulic and Water Resourcing Engineering, Debre Tabor University, Debre Tabor, Ethiopia E-mail address: a42332140@gmail.com ABSTRACT Evaluations of an earth-fill dam throughout its service life must ensure the stability of it against seepage and slope failure.