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In the process of rockfill dam construction, in order to ensure the dam filling quality, it is necessary to conduct in-situ real-time inspection of the dam construction quality. The additional mass method is a new in situ and rapid nondestructive testing technology, which has the characteristics of high efficiency, speed and accuracy. In this paper, the parameters of the excitation system of this method are studied through field tests. Finally, the additional mass block is a round steel plate with a diameter of 50 cm and a weight of 80 kg, and the drop hammer parameters are 50 kg mass, 40 cm height and 20 cm drop distance. The attenuation coefficient β is obtained through the field calibration test, and compared with the test pit test, it is found that the additional mass method has good adaptability to measure the density of rockfill.

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Study on the Applicability of Additional Mass Method in the Quality Control of Rockfill DAMS in Hydraulic Engineering

  • 会议论文

  • 发表日期：

    2025年

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  • Lin Yang,
  • Weijie Deng,
  • Yonghe Zhu,
  • Ruoyu Qiao,
  • Haonan Liu

摘要

In the process of rockfill dam construction, in order to ensure the dam filling quality, it is necessary to conduct in-situ real-time inspection of the dam construction quality. The additional mass method is a new in situ and rapid nondestructive testing technology, which has the characteristics of high efficiency, speed and accuracy. In this paper, the parameters of the excitation system of this method are studied through field tests. Finally, the additional mass block is a round steel plate with a diameter of 50 cm and a weight of 80 kg, and the drop hammer parameters are 50 kg mass, 40 cm height and 20 cm drop distance. The attenuation coefficient β is obtained through the field calibration test, and compared with the test pit test, it is found that the additional mass method has good adaptability to measure the density of rockfill.