Dispute Resolution in the Mining Industry: Lessons Learned from the Effects of Blasting on Nearby Structures

Kisi, Krishna P.; Tukkaraja, Purushotham; Eltschlager, Kenneth K.

doi:10.1061/(asce)la.1943-4170.0000487

Cited by 1 publication

(1 citation statement)

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“…In view of this, this paper relies on the blasting project of the Yangliu tunnel along the Yinsong expressway in Guizhou [3,[11][12][13][14]. By using the method of field monitoring and numerical simulation, the propagation law of blasting vibration waves on the mountain surface is studied, the amplification effect of vibration wave in the tunnel is analyzed and the simulated value of vibration peak velocity is compared with the measured value [15][16][17][18]. e research results of this paper have certain reference significance for the prediction and safety control of blasting vibration in the tunnel.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Surface Vibration Propagation in Tunnel Blasting

Guo

Xiao

Guo

et al. 2022

Mathematical Problems in Engineering

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In order to better study the propagation law of tunnel blasting in mountain landforms, taking the excavation blasting project of the Yangliu tunnel along the Yinsong expressway in Guizhou as the research object, the propagation law of vibration waves to tunnel blasting under the mountain tunnel was analyzed based on the ABAQUS finite element software and compared with the field monitoring data. The results show the peak vibration velocity of numerical simulation. Generally, the simulation value is slightly larger than the field monitoring value, but the average error of closing speed is less than 25% and the maximum error is less than 45%. The component velocity of surface peak vibration under blasting to load is the largest in the vertical direction. The “cavity effect” formed by the side-passing tunnel wall has the most significant amplification effect on the peak vibration velocity in the X direction of the rock and soil above it, which is about 1.62∼1.85 times and the resultant velocity is enlarged by 1.27∼1.45 times. Blasting vibration waves spread to the surface in the form of spherical waves inside the mountain, causing the vibration center of the surface to move to the area with lower elevation. The “cavity effect” caused by the side-through tunnel and the shift of the surface diffusion center to the lower part together led to the peak velocity of the lower measuring point of the Yangliu tunnel being much higher than that of the higher measuring point. The research results of this paper have certain reference significance in controlling the influence of underground blasting vibration on residential buildings in mountain areas.

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