Temperature control in quick construction of high roller compacted concrete dams

2014 ◽  
pp. 53-60
Keyword(s):  
Temperature Control ◽  
Concrete Dams ◽  
Roller Compacted Concrete

scholarly journals The thermal stress of roller-compacted concrete dams during construction

2018 ◽  
Vol 196 ◽  
pp. 04059 ◽  
Author(s):  
Nikolay Aniskin ◽  
Chuc Nguyen Trong
Keyword(s):  
Thermal Stress ◽  
Temperature Regime ◽  
The Body ◽  
Experiment Planning ◽  
Concrete Dams ◽  
Concrete Dam ◽  
Roller Compacted Concrete ◽  
Significant Temperature ◽  
Maximum Temperatures ◽  
Under Construction

During the construction of concrete dams from rolled-compacted concrete, the main effect on the structure are the temperature effects. As a result of heat generation during hydration of cement and the influence of many other factors, significant temperature gradients and cracks may occur. In this paper, the optimal maximum temperatures arising in the body of the concrete dam under construction are determined by the method of experiment planning and the method of numerical simulation - the finite element method. The analysis of the influence of the acting factors on the temperature regime and the thermal stressed state at the rock-built concrete dam from rolled concrete is carried out. The dependences are obtained and nomograms are constructed to determine the optimal parameters. With the help of the computer program Midas Civil 2011, calculations of the temperature regime of the constructed dam were carried out and the maximum temperatures were determined. The calculations of thermal stress state of the structure along with an analysis of the possible cracking are conducted.

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