Abstract:
Vibration can cause damage to the building structure, reducing
its operational reliability: reducing stability, impairing the load-bearing
capacity of slabs and also causing cracks. To prevent the above causes, the
vibration loads acting both on the structure as a whole and on its parts should
be monitored. This paper discusses the results of a measurement of vibration
caused by pile driving in soil and an adjacent housing complex. The aim of
the study was to determine the minimum permissible distance from the piledriving site at which neighbouring buildings would remain unaffected. For
the measurements, control points installed at unequal distances from the pile
driving location and directly on the building were used to allow observation
of the pattern of vibration changes. It is preferable to select vibration
measuring points directly on the structure to assess the impact of vibration
on the structure. It is recommended that the measurement points are on the
side of the structure facing the source of vibration. The actual vibrations in
terms of speed, amplitude, acceleration and frequency were recorded during
the measurement process. On the basis of the resulting vibration
characteristics, damping (absorption) coefficients were determined and the
maximum permissible pile-driving distance was then calculated.
Measurements of building vibration are carried out in order to compare the
results obtained with the specified limit values.
