MONITORING SYSTEM FOR DETERMINATION OF VIBRATIONS OF DIFFERENT BUILDING STRUCTURES DURING DRIVING IN REINFORCED CONCRETE PRE-CAST PILES AND SHEET PILES

摘要

The phenomenon of vibration of buildings and other structures induced by different sources of vibrations is well known. Some of these sources are vibrohammers used to press in sheet piling, pile drivers with hydraulic hammer to drive in reinforced concrete pre-cast piles and vibroflots suspended to mobile cranes which are used to strengthen subsoil by vibroflotation technology. These new developed technologies give opportunity to build more sophisticated structures and in shorter time, in easier way and often cheaper. But these technologies could produce problems for exciting buildings and structures. Therefore, it is necessary to check their behavior during works done by mentioned above machines. But in contrary to used from many years method instead of installation of sensors measuring displacements, deformations and/or cracks of structures authors of this paper proposed and done different way.