Search published articles


Showing 42 results for Dam
Analysis of Seepage Flow and Hydraulic Gradient in the Body and Foundation of Alavian Earth Dam
M. Kouhdaragh, M. Majedi Asl, T. Omidpour Alavian, N. Nobahari, M. Ayami Lord,
Volume 28, Issue 4 (12-2024)
Abstract
Dams, as man-made artificial structures, play a significant role in providing water in various sectors, including agriculture, industry, electricity generation, and flood control. Various soil compounds such as sand, clay, and stone are used for the construction and establishment of earth dams. In this research entitled "Investigation and analysis of Seepage flow and hydraulic gradient in the body and foundation of Alaviyan earth dam using SEEP/W software", the effects of Seepage flow and hydraulic gradient in the body and foundation are investigated. This research analyzes the details of this process using SEEP/W software and analyzes the obtained results. Theoretical foundations related to Seepage flow and hydraulic gradient in earth dams and their importance in the stability of dams are discussed as one of the most important issues of civil engineering. Methods of controlling water seepage from earth dams include the use of seals, walls made with grout mortar, impermeable cores, metal shielding, and impermeable blankets upstream of the dam. In this study, drains, seals, and clay blankets are used as water seepage control methods. The results show that the use of a watertight wall reduces the amount of Seepage because this wall prevents water from flowing through the body of the dam. In general, this research ends by providing quantitative results and recommendations to improve the stability of dams and reduce the possibility of risks caused by seepage flow and hydraulic gradient, and the important elements that should be considered in the design and construction of earth dams. Reviews. In this study, the effects and performance of earth dams have been investigated using finite element methods, and the performance of dams has been evaluated. GEOSTUDIO finite element software was used for modeling. The results of modeling include the investigation of parameters such as phreatic lines, the effect of the water level behind the dam, the clay blanket, and the water seal. Also, the leakage rate from the dam has been extracted and analyzed for different states defined in the model.

Evaluating the Feasibility of Direct Flood Damage Estimation Using the HEC-FIA Model in the Semirom Watershed
Neda Haseli Nasrabadi, Reza Modarres, Saeed Soltani,
Volume 29, Issue 3 (10-2025)
Abstract
Floods are among the most frequent and destructive natural disasters worldwide, causing significant damage to human infrastructure and the environment each year. This study aims to assess the direct damages caused by flooding using the HEC-FIA model in the Semirom watershed. In the first step, flood inundation maps were generated using the HEC-RAS model based on digital elevation model (DEM) data, hydrological inputs, and Manning’s roughness coefficients under both steady and unsteady flow conditions. These maps were then converted into a format compatible with the HEC-FIA software and integrated with economic, land use, and population data to estimate flood damages. The economic database included updated information on agricultural, horticultural, residential, and industrial land uses, partly obtained through field surveys. The flood event of March 11, 2006, was selected as the base flood, and damage analyses were performed for various return periods. The results indicated that the agricultural sector suffered the most damage. In the base year flood, agricultural damages exceeded 821 billion IRR, while structural damages were estimated at approximately 3 billion IRR. In the 1000-year return period, agricultural damages rose to 1,427 billion IRR, and structural damages increased to 44 billion IRR. Analysis of shorter return periods showed a significant decrease in damages, with no structural damage observed in the 10-year return period or less, although agricultural areas remained vulnerable. The findings suggest that the HEC-FIA model has a high capability in estimating direct flood damages across spatial and temporal scales and can serve as an effective tool for flood risk management and planning.

Page 3 from 3     

© 2026 CC BY-NC 4.0 | Journal of Water and Soil Science

Designed & Developed by: Yektaweb

تحت نظارت وف ایرانی