Prediction of Hydro-mechanical Stability of Dam: Using Calibrated Model from Back Analysis and Monitoring Data

Samad Narimani, Seyed Morteza Davarpanah, Javad Sattarvand

Abstract


Earth-fill dam safety and stability control during service period is important at the view point of economics and social security. Monitoring is very important to control dam security, to compare real action with predicted planning and to make good experience and opportunity for future planning. In this paper, water pore pressure and settlements in different parts of Sattarkhan dam during service period was studied. So at first, according to instrument data installed in the body of dam, calibration of numerical model done and by doing back analysis real properties of materials of dam defined. Then by using the calibrated model, pore water pressures and settlements of dam studied. Analysis carried out by Flac2D Finite Difference software. The constitutive model used was Mohr-Coulomb at the state of plane strain. Results showed that dam will be safe during service period at the view point of hydro-mechanical behaviour. Finally, stability of dam studied from the view of rapid depletion of the reservoir, which results showed safety conditions.

 

 


Keywords


Sattarkhan Dam; Monitoring; Finite Difference; Back Analysis; Rapid Depletion.

References


A. Farivar and A. Mirgasemi, "studying behavior of Tabarak Abad Dam During Construction by Using Back Analysis," Civil Engineering Journal of Tehran University (2010) vol. 3: 407-412.

O. Khamesi and A. Mirgasemi, "studying Hydraulic Fracture in the core of earth-fill dams," Civil Engineering Journal of Tehran University (2010) vol. 2: 181-191.

S. Ozkuzukiran, M. Y. Ozkan, and M. Ozyazicioglu, "Settlement behaviour of a concrete faced rock-fill dam," Journal of Geotechnical and Geological Engineering (2006) vol. 24: 1665–1678.

M. Pelasi and B. Salehi, "studying behavior of Maroon Dam During operation phase by Using Back Analysis," Civil Engineering Journal of Tehran University (2010) vol. 5: 607-619.

"Geological Report of Sattarkhan Dam," Band Ab Consulting Engineering Co, Power Ministry of Iran1997.

"Fast Lagrangian Analysis of Continua, Manual," ed. Minneapolis, Minnesota: Itasca Consulting group, Inc, 2002.

"Instrumentation Report of Sattarkhan Dam," Band Ab Consulting Engineering Co, Power Ministry of Iran2011.

M. Ghorbani, M. Sharifzade, and R. Masoudi, "Back analysis techniques in geotechnical engineering," Amirkabir Civil Journal, 2009.

B. M. Das, Principles of Geotechnical Engineering. USA: University of Texas, 1994.

USCE, Stability of Earth and Rock-fill Dam. USA: US. Department of Army, Corps of Engineering, 1997.

F. Robin and M. Groger, Geotechnical Engineering of Embankment Dams. USA: Balkema, 1992.

Vassilis Gikas, Michael Sakellariou, "Settlement analysis of the Mornos earth dam (Greece): Evidence from numerical modeling and geodetic monitoring," Journal of Engineering Structures (2008) vol. 30: 3074-3081.

Wei Zhou, Junjie Hua, Xiaolin Chang, Chuangbing Zhou, "Settlement analysis of the shuibuya concrete-face rockfill dam ," Journal of Computers and Geotechnics (2011) vol. 38: 269-280.

Qinqin Guo, Liang Pei, "Response surface and genetic method of deformation back analysis for high core rockfill dams," Journal of Computers and Geotechnics (2016) vol. 74: 132-140.

S. M. Davarpanah, M. Sharifzadeh, J. Sattarvand, S. Narimani, "Evaluation of building displacement induced by EPB tunneling through GPS-GNSS monitoring system and back analysis technique (Tabriz subway tunnels),"Civil Engineering Journal'' (2016) vol. 2: 270-285.


Full Text: PDF

Refbacks

  • There are currently no refbacks.




Copyright (c) 2016 Samad Narimani, Seyed Morteza Davarpanah, Javad Sattarvand

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
x
Message