Abstract
The report presents the results of a field experiment conducted in the summer of 2019, which aims to determine the actual effect of a certain type of vertical barrier to reduce accelerations and horizontal displacements in the ground caused by vibrations of construction machinery and vehicles. The reason for the experiment were the cracks obtained on a number of old masonry buildings, some of which - cultural monuments exposed to heavy vehicle vibrations from trains, trucks or vibrating rollers that repair the road structure. The experiment was conducted on a special site about 50 km north of Sofia. The site is outside a settlement, at the foot of the mountain and around it there are no industrial sources of any vibration.
The schemes for conducting the experiment are presented and the results obtained are analyzed. Diagrams of the most significant values are drawn up and various design situations are compared. It is found that acceleration and displacement reduction of 70% to 90% has been achieved, which is quite satisfactory for the purpose. The effect of wave’s diffraction below the building foundations barrier at a distance of 10 m backwards was also measured. The parameters of the mechanization used, the insulation materials and the earth base are also presented.
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Kolev, C. (2021). Vertical Vibro-Isulation for Building Foundations – A Full Scale Experiment. In: Rotaru, A. (eds) Critical Thinking in the Sustainable Rehabilitation and Risk Management of the Built Environment. CRIT-RE-BUILT 2019. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-030-61118-7_13
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DOI: https://doi.org/10.1007/978-3-030-61118-7_13
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