Real Time Temperature Simulation on Caohe River Aqueduct in South to North Water Transfer Project During Construction Period

Abstract:

The cracking control standard of water delivery structure is quite strict especially for middle-route of south-to-north water transfer project with long distance water transfer, large discharge, the crack prevention standard is extraordinary strict and must be reached. Early crack during construction period will affect safe operation of aqueduct, and diurnal variation of air temperature has significant effect on temperature field of thin-walled structure. Construction process simulation and temperature filed calculation during construction period about Caohe river landing rectangle aqueduct of Beijing-Shijiazhuang emergency water supply engineering of middle-route of south-to-north water transfer project are carried out by FEM , and compared with the monitoring temperature. The comparison result shows that temperature field during construction can be accurately simulated by calculation, which is helpful for guiding construction and choosing construction scheme, and worthy to popularize to other similar projects. From the calculation and monitoring, the maximum temperature difference is less than the standard, so there will be no serous cracks during construction in Caohe river aqueduct.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 1270-1274
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.1270
• Online since: May 2011
• Authors: Ping Zhang, Bin Tian
• Keywords: Aqueduct, Finite Element Model (FEM), Real-Time Simulation, South-to-North Water Transfer Project, Temperature Field

References

[1] B.F. Zhu: Thermal stress and temperature control of mass concrete (China Electric Power Press, Beijing 2003), in Chinese.

[2] Specifications for hydraulic concrete construction(China Electric Power Press, Beijing 2002), in Chinese.