Closed-form formulation of construction-induced vibrations on existing building at the Metro Line 3 project in Hanoi: Application to control the construction procedures
The density of high-rise building is increasing over recent years in urban city. Construction activities, particularly piling processes, D-wall excavation, are paid attention due to ground borne vibrations. The impact of construction-induced vibrations on existing buildings is discussed in the past and so on. However, the impact of some special source such as grab shocking the Metro Line 3 (Hanoi) hasnot beenmentioned in literature. This paper evaluates the potential effect of ground vibrations induced by grab shock on sensitive existing buildings through field experiences, alsothe analytical closed-form formulation of construction-induced vibrations on existing building in Hanoi is proposed. This formulation is applied to investigate the construction-induced vibrations on existing building in Metro Line 3 project. This application is useful to control the grab drop length as well as the distance of existing building to vibration source.
Keywordsvibration extrapolation field test metro line 3 D-wall Hanoi
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The authors would like to thank the FECON Corporation for facilities and financial assistance under the Metro line 3 project.
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