Analysis and modeling of impact of flood on a dam using Midas software (a case study of university of Ilorin)

RAJI S.A; ABUR ANDY; JIYA GIDEON; OLOBAYO A.A

doi:10.31686/ijier.vol4.iss2.516

Authors

RAJI S.A University of Ilorin, Nigeria
ABUR ANDY University of Ilorin, Nigeria
JIYA GIDEON University of Ilorin, Nigeria
OLOBAYO A.A University of Ilorin, Nigeria

DOI:

https://doi.org/10.31686/ijier.vol4.iss2.516

Abstract

This project examined the computer aided modelling, analysis, and design, of a concrete gravity dam using MIDAS GTS software. A manual design based on stability analysis against sliding, overturning and shear friction of the dam due to a flood level of 7.6 m (same as the height of the dam) and a flood level of 10.5 m were included. Data used was collected from project planning unit (PPU) of the University of Ilorin for the analysis. Based on the manual design of the typical concrete gravity dam analysis carried out, the factors of safety against, Overturning, Sliding and Shear Friction Factor were 2.5, 2.3, and 47 (for the flood level of 7.6 m) and 1.5, 1.2, and 26 (for the flood level of 10.5 m) which are all greater than the allowable factors. . The principal stresses at the toe of the dam using manual and MIDAS software are 2.5 X 105 kN/????2 and 2.43 X 105 kN/????2 respectively and the shear stresses using manual and MIDAS software are 1.1 X 105 kN/????2 and 1.6 X 105 kN/????2 respectively (for the flood level at 7.6 m)

Downloads

Download data is not yet available.

Author Biographies

RAJI S.A, University of Ilorin, Nigeria

Department of Civil Engineering
ABUR ANDY, University of Ilorin, Nigeria

Department of Civil Engineering
JIYA GIDEON, University of Ilorin, Nigeria

Department of Civil Engineering
OLOBAYO A.A, University of Ilorin, Nigeria

Department of Civil Engineering

References

(1) Adedeji, A. A. (2007), Seismic Analysis Of Earth Wall Gravity Dams Using Decoupled Modal Approach, Department Of Civil Engineering, University Of Ilorin, Pp. 3-5.

(2) A.T. Berrabah (2012), ‘Dynamic Soil-Fluid-Structure Interaction Applied For ConcreteDam’, Universite Aboubekr Belkaid Tlemcen. Basic Terms of Dam Characteristics (2011), New Hampshire Department Of Environmental Services.

(3) British Standard 8007 (1987), “Code Of Practice For Design Of Concrete Structures For Retaining Aqueous Liquid”

(4) British Standard 8110-1 (1985) “Structural Use Of Concrete”

(5) Bureau of reclamation (1987), “Design of small dams”, pp. 315-319.

(6) David V. Hutton (2004), “Fundamentals of Finite Element Analysis”,The Mcgraw-Hills Companies Inc., New York, NY, ISBN: 0-07-239536-2, P 3.

(7) Hazrat Ali Et Al (2012), “Comparison Of Result And Analysis Of Concrete Gravity Dam”, Department Of Civil Engineering, Chittagong University Of Engineering And Technology, Bangladesh, Pp. 19-27.

(8) Ljubomir T. (2005), Dams And Appurtenant Hydraulic Structures, A.A. Balkema Publishers Leiden, Taylor & Francis Group Plc, London, UK, ISBN 9789058095862.

(9) Mahendran Mahen, Siva Prasad, N., Sekar, A.S. And Krishnapillai, S, (2007), “Applications Of Finite Element Analysis In Structural Engineering”, Proceedings International Conference On Computer Aided Engineering, Chennai India, P 38.

(10) Midas Gts (2014), Midas User Support System available at http://www.midasusers.com/MidasGts.

(11) Oladunjoye H.T., Olasunkanmi N.K. And Olatunji S. (2012), “Geo-electrical Assessment of University of Ilorin Dam Axis”, Department of Physics, University Of Ilorin, ISBN: 0976-0970, pp 221-223.

(12) P.Novak, A. Moffat et al (2004), “Hydraulic Structures”, Taylor & Francis e-Library, 4thEdition, 29 West 35th Street, New York, ISBN 0-203-22833-2, pp. 3-35.

(13) Shittu, A.Y (2006), “A Study on Computer Aided Design of Earth Dam and Concrete Gravity Dam Using Visual Basic 6.0”, University Of Ilorin, pp. 1-17.