构筑物爆破拆除振动规律的研究
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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。
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.
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.
引文
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[3]周家汉,金保堂,陈善良.高烟囱拆除爆破及塌落振动测量与分析[C]//工程爆破文集(第七辑).乌鲁木齐:新疆青少年出版社,2001,707-712.
[4]周家汉.爆破拆除塌落振动速度计算公式的讨论[J].工程爆破,2009,15(1):1-4.
[5]Zhou Jia-han.Discussion on the calculation equatione of collapse vibration velocity caused from blasting demolition[C]//WANG Xu-guang.New Development on Engineering Blasting.Beijing,Metallurgical Industry Press,2009:483-487.
[6]王希之,王自力,龙源,等.高层建筑物爆破拆除塌落振动的数学模型[J].爆炸与冲击,2002,22(2):188-191.
[7]吕淑然,杨军,刘国振.高大建筑物定向爆破地震振动效应监测与控制研究[J].爆破,2003,20(3):71-74.
[8]齐世福,阎家良.高耸建筑物定向爆破倾倒时的后座及其对策[J].爆炸与冲击,1989,9(4):318-327.
[9]Chi E A,Zhang Y P.Analysis on control technology for collapsing vibration generated by building demolition blasting[J].Journal of coal science&engineering,2010,16(3):262-266.
[2]周家汉,杨人光,庞维泰.建筑物拆除爆破塌落造成的地面振动[C]//土岩爆破文集(第二辑).北京:冶金工业出版社,1984,317-326.
[3]周家汉,金保堂,陈善良.高烟囱拆除爆破及塌落振动测量与分析[C]//工程爆破文集(第七辑).乌鲁木齐:新疆青少年出版社,2001,707-712.
[4]周家汉.爆破拆除塌落振动速度计算公式的讨论[J].工程爆破,2009,15(1):1-4.
[5]Zhou Jia-han.Discussion on the calculation equatione of collapse vibration velocity caused from blasting demolition[C]//WANG Xu-guang.New Development on Engineering Blasting.Beijing,Metallurgical Industry Press,2009:483-487.
[6]王希之,王自力,龙源,等.高层建筑物爆破拆除塌落振动的数学模型[J].爆炸与冲击,2002,22(2):188-191.
[7]吕淑然,杨军,刘国振.高大建筑物定向爆破地震振动效应监测与控制研究[J].爆破,2003,20(3):71-74.
[8]齐世福,阎家良.高耸建筑物定向爆破倾倒时的后座及其对策[J].爆炸与冲击,1989,9(4):318-327.
[9]Chi E A,Zhang Y P.Analysis on control technology for collapsing vibration generated by building demolition blasting[J].Journal of coal science&engineering,2010,16(3):262-266.
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