Determination of the ground vibration attenuation law from a single blast: A particular case of trench blasting

The general transmissivity law of ground vibrations was studied, and a user-friendly methodology for determining the behavior of vibrations generated in any rock mass is proposed. The study was based on a single blast in a trench excavation, analyzing the vibration components recorded from two fixed locations. The attenuation law and the main variables according to the legal requirements, frequency and peak particle velocity (PPV), are defined with this novel method, achieving a high confidence level in a simple manner. The proposed approach can also have an important impact in terms of reducing the potential consequences of vibrations for the surrounding construction and achieving the required definition of rock mass. Reducing the cost and time in many projects where blasting techniques are applied is particularly useful for the design of future blasts. (C) 2021 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V.

Automated summary

The study presents a methodology for determining the behavior of vibrations generated in any rock mass based on a single blast in a trench excavation, achieving high confidence level in a simple manner. The proposed approach can have an important impact in reducing potential consequences of vibrations for surrounding construction and achieving the required definition of rock mass, particularly useful for reducing cost and time in projects where blasting techniques are applied.