كنترل ارتعاشات محيطي القا شده به انسان با روش Trench Barrier

Control of induced environmental vibrations to personnel by trench barrier

The aim of this study was to eliminate the environmental vibrations by use of filled trench in administrative building of steel Co. For assessment of the effects of vibra tion on human, on the each of the three floors of the administrative building, wh ich was overshadowed by vibration, resulting from oxygen unit, 14 points were determined and the induced environmental vibrations to personnel according to international standard organization-263I were measured in those points. The results of measurements have shown that a ground vibration was over the fatigue in adjacent building at 25 meters of oxy gen unit- Decreased Profi ciency Boundary and at some points was above the exposure limit. For reduction of the induced ground vibrations to the adjacent building, this research has designed a method using of sand and two layers of Styrofoam filled tren ch. The measurements done that had before and after don e by trench, have shown that, on average the vibration was reducing around 50% to 70%.