Abstract
In this article, seepage phenomena through the karstic limestone foundation of Behesht Abad dam are investigated. In order to get a state of seepage and determine the depth of grouting curtain, it has been tried to evaluate the seepage of Behesht-Abad dam foundation and its abutments by the help of numerical analysis and UDEC 4.0 software. To perform this research, firstly, geological data during a study phase in Behesht Abad dam site was gathered, and then different methods have been used to calculate the engineering properties of rock mass. Therefore the structural model of dam foundation based on the geological data constructed and various boundary conditions including different heads were applied on the model and the suitable depth for the grouting curtain was proposed.
Highlights
Dams are such structures that constructed to control and store surface water
In order to get a state of seepage and determine the depth of grouting curtain, it has been tried to evaluate the seepage of Behesht-Abad dam foundation and its abutments by the help of numerical analysis and UDEC 4.0 software
The performed water pressure tests indicate the necessity of providing a grout curtain below the Behesht Abad dam foundation
Summary
Dams are such structures that constructed to control and store surface water. The main reasons for constructing of Behesht-Abad Dam are the existence of important Industries in the Zayandeh Rood basin, growing population in this area and growing the need of water in central part of Iran. The performed water pressure tests indicate the necessity of providing a grout curtain below the Behesht Abad dam foundation In this regard, Lugeon values and the hydro-mechanical behavior of investigation boreholes are calculated and their frequencies in each part have been assigned. A fully coupled mechanical-hydraulic analysis is performed, in which fracture conductivity is dependent on mechanical deformation and, joint water pressures affect the mechanical computations Both confined flow and flow with a free surface can be modeled in UDEC. In these methods, structural model of dam and its foundation based on geological Data is designed in the software, and seepage and fluid flow through rock joints are studied, by implementation of different water pressure behind dam. 65 main commands and nearly 400 command modifiers (called keywords) which are recognized by UDEC [1]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
