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During the construction of a high-speed railway project, due to the lack of vibration in place during the concrete pouring process, the location of the bottom slab of block 0# is prone to problems such as voids and poorly compacted concrete, which has a serious impact on the overall quality and function of the project. In this paper, the elastic wave CT technology is selected, relying on the engineering frontline project, based on the on-site test, to explore the internal quality of concrete and the distribution of defects, and to derive the distribution map of the wave velocity of the concrete of the 0# block of the inspected bridge, to locate the location and area of the concrete damage area, which is of guiding significance for the quality of the project.

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Investigation on the Distribution of Internal Defects in Continuous Concrete Girder Bridges

  • 会议论文

  • 发表日期：

    2025年

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  • Yan Zheng,
  • Guangbo Liu,
  • Zupin Qin,
  • Peng Chen,
  • Fengrui Xue

摘要

During the construction of a high-speed railway project, due to the lack of vibration in place during the concrete pouring process, the location of the bottom slab of block 0# is prone to problems such as voids and poorly compacted concrete, which has a serious impact on the overall quality and function of the project. In this paper, the elastic wave CT technology is selected, relying on the engineering frontline project, based on the on-site test, to explore the internal quality of concrete and the distribution of defects, and to derive the distribution map of the wave velocity of the concrete of the 0# block of the inspected bridge, to locate the location and area of the concrete damage area, which is of guiding significance for the quality of the project.