تحليل اثر ارزشهاي ناشي از انفجار بر سنگهاي ساختگاه سد مسجد سليمان

Analysis of ground vibration resulted from blasting in bed rock of Massjed Solimanʹs dam

If ground vibration caused by blasting exceeded from the specific amount, it will damaged the structures and rock mass which are adjacent to blasting site. Therefore ground vibration should be under control. One of the methods for controlling the ground vibration is using peak particle velocity criteria. In underground power station complex of Masjed Solimanʹs dam the structures of phase2 have been excavated by drilling and blasting in presence of the phasl structures. Hence, ground vibration which is the result of blasting, should be limited to such a degree that no damage caused to adjacent structures. For this reason more than 300 blasting have been registered by geophones. By using these data in terms of particle velocity criteria, Formulas for all areas of underground power station complex have been calculated. Then with regard to these formulas, blasting patterns for reduce of damage were redesigned.