Vibration impact of rock excavation on nearby sensitive buildings: An assessment framework

Shiguang Wang, Songye Zhu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

As a common construction activity, rock excavation using hydraulic breakers often generates high-level ground- and structure-borne vibrations, which may adversely affect nearby buildings in terms of structural safety, occupant comfort, and ultraprecision equipment functionality. However, building vibrations induced by rock excavation have not been well investigated and understood in the literature. For example, the coupling attenuation at column bases and the floor-to-floor vibration attenuation inside a building have rarely been quantitatively studied. Moreover, traditional dynamic analysis methods in earthquake engineering may not apply to simulations of rock excavation-induced building vibrations. This paper proposed a novel assessment framework based on the mechanical impedance concept, which can quantify the coupling attenuation at column bases and the floor-to-floor vibration attenuation inside a building in a computationally efficient manner. Systematic finite element simulations of rock excavation were performed to characterize vibration propagation in the ground and buildings. The finite element simulations and field measurements successfully verified the accuracy of the proposed prediction formulas, which offers a convenient vibration impact assessment framework to construction practitioners.

Original languageEnglish
Article number107508
JournalSoil Dynamics and Earthquake Engineering
Volume163
DOIs
Publication statusPublished - Dec 2022

Keywords

  • Building vibrations
  • Field measurement
  • Impedance-based prediction model
  • Mechanical impedance
  • Rock excavation
  • Vibration impact assessment

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Soil Science

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