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Early-age behaviour of precast concrete immersed tunnel based on degree of hydration concept

(2014) STRUCTURAL CONCRETE. 15(1). p.66-80
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Abstract
Using the Hong Kong-Zhuhai-Macao Link project as an example, the focus of this research is to describe the early-age behaviour of a precast immersed tunnel using a constitutive model based on the degree of hydration concept. In this way, the effect of both age and temperature on the early-age behaviour can be taken into account simultaneously. Special attention is also paid to early-age creep under varying stress levels combined with the degree of hydration concept. Numerical procedures are proposed to predict the early-age behaviour of immersed tunnel segments during the entire fabrication process. The engineering factors related to early-age cracking are analysed and discussed. This in-depth study results in a better understanding, and further appropriate practical measures can be employed to control early-age cracking in the actual project.
Keywords
analysis and design methods, design and construction, creep under varying stress levels, degree of hydration, early-age cracking, precast immersed tunnel, SIMULATION, MODEL, TEMPERATURE, CRACKING, MATURITY METHOD, MECHANICAL-PROPERTIES, BASIC CREEP, tunnelling

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Citation

Please use this url to cite or link to this publication:

Chicago
Liu, Xian, Wei Jiang, Geert De Schutter, Yong Yuan, and Quanke Su. 2014. “Early-age Behaviour of Precast Concrete Immersed Tunnel Based on Degree of Hydration Concept.” Structural Concrete 15 (1): 66–80.
APA
Liu, Xian, Jiang, W., De Schutter, G., Yuan, Y., & Su, Q. (2014). Early-age behaviour of precast concrete immersed tunnel based on degree of hydration concept. STRUCTURAL CONCRETE, 15(1), 66–80.
Vancouver
1.
Liu X, Jiang W, De Schutter G, Yuan Y, Su Q. Early-age behaviour of precast concrete immersed tunnel based on degree of hydration concept. STRUCTURAL CONCRETE. 2014;15(1):66–80.
MLA
Liu, Xian, Wei Jiang, Geert De Schutter, et al. “Early-age Behaviour of Precast Concrete Immersed Tunnel Based on Degree of Hydration Concept.” STRUCTURAL CONCRETE 15.1 (2014): 66–80. Print.
@article{4381554,
  abstract     = {Using the Hong Kong-Zhuhai-Macao Link project as an example, the focus of this research is to describe the early-age behaviour of a precast immersed tunnel using a constitutive model based on the degree of hydration concept. In this way, the effect of both age and temperature on the early-age behaviour can be taken into account simultaneously. Special attention is also paid to early-age creep under varying stress levels combined with the degree of hydration concept. Numerical procedures are proposed to predict the early-age behaviour of immersed tunnel segments during the entire fabrication process. The engineering factors related to early-age cracking are analysed and discussed. This in-depth study results in a better understanding, and further appropriate practical measures can be employed to control early-age cracking in the actual project.},
  author       = {Liu, Xian and Jiang, Wei and De Schutter, Geert and Yuan, Yong and Su, Quanke},
  issn         = {1464-4177},
  journal      = {STRUCTURAL CONCRETE},
  language     = {eng},
  number       = {1},
  pages        = {66--80},
  title        = {Early-age behaviour of precast concrete immersed tunnel based on degree of hydration concept},
  url          = {http://dx.doi.org/10.1002/suco.201300027},
  volume       = {15},
  year         = {2014},
}

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