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<p>In order to the influence of tunnel blasting vibration in near scenic area, a tunnel project as the basis, using a combination of on-site monitoring and numerical simulation methods, to analyze the propagation pattern of tunnel blasting vibration and the dynamic response of the scenic area under the action of blasting loads. The results indicated that: tunnel blasting generated by the peak vibration velocity of the surface mass was inversely correlated with the blast center distance, positively correlated with the maximum amount of single-section blasting powder, and the decay rate with the increase in the blast center distance gradually become slower. When the tunnel palm face blasting stress wave propagation to the scenic area viewing platform, the peak radial vibration velocity of 0.00109&#xa0;cm/s, the peak vertical vibration velocity of 0.00083&#xa0;cm/s, the peak synthetic vibration velocity is only 0.00137&#xa0;cm/s, far less than the safe range of vibration velocity. Comparison of the measured and simulated data shows that the average relative error of the two is 16.5%, and the overall trend of the waveform and the peak value is basically consistent, which indicates that the equivalent load method has a high accuracy in simulating the propagation of tunnel blast stress waves. In addition, the blasting stress wave propagation to the surface of the mountain will produce reflection, refraction, the formation of complex vibration zones, especially in the gully landscape where the energy concentration phenomenon is obvious. The results of the study can provide a reference for the blasting design and safety assessment of similar projects.</p>

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Study on Vibration Transmission Characteristics of Tunnel Blasting Near Scenic Area

  • 期刊论文

  • 发表日期：

    2026年2月10日

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  • Xiong Qiao,
  • Shicheng Ruan

摘要

In order to the influence of tunnel blasting vibration in near scenic area, a tunnel project as the basis, using a combination of on-site monitoring and numerical simulation methods, to analyze the propagation pattern of tunnel blasting vibration and the dynamic response of the scenic area under the action of blasting loads. The results indicated that: tunnel blasting generated by the peak vibration velocity of the surface mass was inversely correlated with the blast center distance, positively correlated with the maximum amount of single-section blasting powder, and the decay rate with the increase in the blast center distance gradually become slower. When the tunnel palm face blasting stress wave propagation to the scenic area viewing platform, the peak radial vibration velocity of 0.00109 cm/s, the peak vertical vibration velocity of 0.00083 cm/s, the peak synthetic vibration velocity is only 0.00137 cm/s, far less than the safe range of vibration velocity. Comparison of the measured and simulated data shows that the average relative error of the two is 16.5%, and the overall trend of the waveform and the peak value is basically consistent, which indicates that the equivalent load method has a high accuracy in simulating the propagation of tunnel blast stress waves. In addition, the blasting stress wave propagation to the surface of the mountain will produce reflection, refraction, the formation of complex vibration zones, especially in the gully landscape where the energy concentration phenomenon is obvious. The results of the study can provide a reference for the blasting design and safety assessment of similar projects.