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KSCE Journal of Civil Engineering

, Volume 23, Issue 5, pp 1911–1922 | Cite as

Temperature Field Reconstruction of Concrete Dams based on Distributed Optical Fiber Monitoring Data

  • Huawei ZhouEmail author
  • Zhiguo Pan
  • Zhipeng Liang
  • Chunju Zhao
  • Yihong Zhou
  • Fang Wang
Construction Management
  • 94 Downloads

Abstract

Mastering the real temperature distribution of the concrete dam is the basis for solving the problem of temperature control and crack prevention. In this paper, Distributed Temperature Sensing (DTS) technology was applied to temperature monitoring of a high-arch dam under construction in southwest China. In order to obtain a more comprehensive temperature distribution of the dam, optical fiber layout principles for arch dams were studied, and horizontal and vertical optical fiber layout schemes were first proposed according to these principles. The real temperature variation processes of the dam were obtained in real time with a line temperature measurement pattern instead of a point temperature measurement pattern. Additionally, a framework of distributed optical fiber data acquisition and remote transmission was proposed. Interconnection of multiple DTS hosts and remote transmission of temperature data were realized. Then, two-dimensional temperature fields of a typical dam block in different ages and longitudinal profiles of dam blocks with embedded fibers were reconstructed based on large amounts of temperature monitoring data and the Kriging difference algorithm. Temperature field reconstruction results showed that the temperature distribution law of the concrete arch dam was in accordance with the actual situation.

Keywords

distributed optical fiber monitoring data temperature field reconstruction Kriging difference algorithm concrete dam 

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Copyright information

© Korean Society of Civil Engineers 2019

Authors and Affiliations

  • Huawei Zhou
    • 1
    Email author
  • Zhiguo Pan
    • 2
  • Zhipeng Liang
    • 3
  • Chunju Zhao
    • 3
  • Yihong Zhou
    • 3
  • Fang Wang
    • 3
  1. 1.Hubei Key Laboratory of Construction and Management in Hydropower EngineeringChina Three Gorges UniversityYichangChina
  2. 2.College of Water Conservancy and Hydropower EngineeringHohai UniversityNanjingChina
  3. 3.College of Hydraulic and Environmental EngineeringChina Three Gorges UniversityYichangChina

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