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The Monitoring and Feedback for the Construction Quality of the Mass Concrete Based on the Distributed Optical-Fiber Temperature Measurement System

Auteur(s):

Médium: article de revue
Langue(s): en 
Publié dans: The Open Civil Engineering Journal, , n. 1, v. 9
Page(s): 145-149
DOI: 10.2174/1874149501509010145
Abstrait:

Temperature control is a key factor which affects the construction quality of the mass concrete, which is also an important measure to prevent crack propagation. Lots of engineering practices show that most of temperature cracks come out in the form of the surface crack during the construction of the concrete dam. In addition, deep cracks and transverse cracks are usually developed by surface cracks. Strengthening conversation and surface insulation are one of the main methods to prevent surface cracks. In this paper, Xiluodu hydropower dam is taken as the engineering background, and an insulation monitoring experiment under the winter low-temperature condition was carried out on the fresh concrete layer during the construction period using the distributed fiber optic temperature monitoring system. The inversion of the equivalent heat coefficient for the fresh concrete layer with the covering of the polyethylene membrane insulation materials was conducted, besides the monitoring results and the feedback analysis of the conservation status was obtained based on the test data. The above procedure provides a basis for evaluating the quality of construction and the dynamic adjustment of the construction programs.

Copyright: © 2016 Feng Jin and Yihong Zhou
License:

Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original.

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  • Reference-ID
    10175642
  • Publié(e) le:
    30.12.2018
  • Modifié(e) le:
    02.06.2021