Optimization of time and temperature of dam construction for thermal analysis of roller compacted concrete dam

Document Type : Research


1 Ph.D. Student of Civil Engineering Department, University of Qom, Qom, Iran

2 Assistance Professor of Civil Engineering Department, Lahijan Branch, Islamic Azad University, Lahijan, Iran

3 M.Sc. of Civil Engineering Department, Lahijan Branch, Islamic Azad University, Lahijan, Iran


The growing number of roller compacted concrete dams built around the world demand good methods to reduce the risk of thermal cracks. In roller compacted concrete dams, usually, large amounts of concrete are poured in a short time and the heat generated by the hydration of the cement, leads to an increase in temperature in the body of the dam, which results in a significant heat slope. In this research, Abaqus software, a finite element software, was used for thermal analysis of the dam during construction and concreting. The method of applying thermal changes is as follows. For the structure, hypothetical 50 cm layers are considered, each layer takes up 72 hours of analysis time. In general, the problem under analysis is analyzed 12 times. Each analysis is based on the start of the project from different months of the year to achieve the optimal constructing time based on the maximum temperature in the concrete of the dam and the stresses created by it by collecting the information and using the perceptron network algorithm. Perceptron algorithm and machine learning were performed on the 12 mentioned analyzes and then the process output was generated for 365 days of the year as the start of the project. Finally the optimal time to start construction was achieved.


Main Subjects

[1] Heidari, N. and Ahmadi, M. (2011) Advanced Analysis of the Effect of Ambient Heat and Cement Hydration in a Rolling Concrete Dam Considering the Construction Process, Journal of Modares Civil Engineering, Volume 88, Number 1, Pages 13-18
[2] Nemati, M, Shekarchizadeh, M, Nourzad, A, Kashi, Gh (2006), Investigation of Thermal Cracking in Weighted Concrete Dams Using Finite Element Method, M.Sc. Thesis, University of Tehran  
[3] Ishikawa, M. (1991). Thermal stress analysis of a concrete dam. Computers and Structures. 40 (2), 347-352.
[4] Malkawi, A. I. H. Mutasher, S.A. and Qiu, T. J. (2003). Thermal-Structural Modeling and Temperature Control of Roller Compacted Concrete Gravity Dam, Journal of Performance of constructed facilities, ASCE, 17 (4), 177-187.
[5] Kuzmanovic, V. Savic, L. Mladenovic, N. (2015). Thermal-Stress Behavior of RCC Gravity Dams, FME Transactions. 43, 30-34.
[6] Khanzaei, P. Abdolrazeg, A. A. Samali, B. Ghaedi, K. (2015). Thermal and Structural Response of RCC Dams During Their Service Life. Journal of Thermal Stresses. 38 (6), 592609.
[7] Mostafaei, H, Ghamami, M, Aghabozorgi, P (2021) Modal identification of concrete arch dam by fully automated operational modal identification." In Structures,32: 228-236.
[8] Mostafaei, H Behnamfar, F, Alembagheri, M (2020) Nonlinear analysis of stability of rock wedges in the abutments of an arch dam due to seismic loading." Structural monitoring and maintenance 7(4): 295-317.  
[9] Mashayekhi, M., Mostafaei, H. (2020) Determining the Critical Intensity for Crack Initiation in Concrete Arch Dams by Endurance Time Method." International Journal of Numerical Methods in Civil Engineering 5(2): 21-32.
[10] Pasbani Khiavi, M., Mousavi, M., & Ghorbani, M. A. (2019). Thermal analysis of roller compacted concrete dams during construction using finite element method. Journal of Dam and Hydroelectric Powerplant, 6 (22), 13-25.  
[11] Asadi, I., Shafigh, P., Zahiruddin Fitri Bin, A.,. Norhayati Binti, M (2018) Thermal conductivity of concrete - A review, Journal of Building Engineering, 20:81-93
[12] Monfared, M Valamanesh, V(2008) Thermal analysis for weighted concrete dam Oh, the second national conference of hydropower plants, Tehran  
[13] Tatin, M., Briffaut, M., Dufour, F., Simon, A., & Fabre, J. P. (2018). Statistical modeling of thermal displacements for concrete dams: Influence of water temperature profile and dam thickness profile. Engineering Structures, 165, 63-75.
[14] Chen, S., Gu, C., Lin, C., Zhang, K., & Zhu, Y. (2020). Multi-kernel optimized relevance vector machine for probabilistic prediction of concrete dam displacement. Engineering with Computers, 1-17.
[15] Li, B., Zhang, Z., Liu, Y., & Yang, S. (2014). Evaluation standard for safety coefficient of roller compacted concrete dam based on finite element method. Mathematical Problems in Engineering, 2014.
[16] Luna, R. and Wu, Y. (2000). Simulation of temperature and stress field during RCC dam construction. Journal of Construction Engineering and Management, 126 (5), 381-388.
[17] Jyane Construction Company (2010) 4-meter thermal analysis report of Zhaveh reservoir dam  
[18] Jyane Construction Company (2010) thermal analysis report of Zaveh reservoir dam