【摘要】 现有构筑物爆破拆除振动的研究主要集中于爆破振动、后座振动与塌落振动,其中以塌落振动占主导地位。通过理论分析及工程实际监测案例发现:塌落振动又可分为前期爆破切口闭合振动和后期主体塌落振动,对于特殊结构爆破拆除切口闭合振动与主体塌落振动处于同一影响水平。分析了爆破振动、后座振动、切口闭合振动和主体塌落振动的生成、传播规律及其对周边结构的危害等级,并提出了相应的降振措施与振动监测建议。更多还原

【Abstract】 At present,structure blasting demolition vibration study mainly focuses on blasting vibration,seating vibration and collapse vibration,collapse vibration is dominant.Further more,it is found through theory analyses and the cases of engineering practical monitoring that collapse vibration is divided into prophase blasting cut mesh vibration and anaphase main part collapse vibration,they are in the same dominant position for special structures.The generation and propagation law of the four types vibration and their harm ranks to surrounding structures were analyzed here,and some corresponding vibration reduction measures and vibration monitoring suggestions were proposed.更多还原