爆破地震动频率特性诱导结构破坏分析
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摘要
爆破地震效应是爆破的主要负面效应,目前多采用爆破质点振动速度来表述地震效应的影响程度大小;同时爆破振动频率特性对结构体的破坏程度也有很大的影响作用,并随工程结构特性而异.从爆破震动频率特性的角度,通过理论计算和分析对爆破振动波频率特性诱导结构体破坏作用进行了研究,结果认为结构体对于介质中传来的爆破振动波的选择放大效应.
The blasting vibration is the most negative effect of the blasting,and the particular vibration velocity of blasting is mostly used to reflect the degree of blasting vibration now.At the same time,the frequency of blasting vibration influences the damage degree of the structure,and varies with the structure characteristic.From the point of frequency characteristic of blasting vibration,the effect of structure damage induced by the blasting vibration was researched based on theoretical analysis.The results ahow that the structure has the selective amplification characteristic on the blast wave from the medium.
The blasting vibration is the most negative effect of the blasting,and the particular vibration velocity of blasting is mostly used to reflect the degree of blasting vibration now.At the same time,the frequency of blasting vibration influences the damage degree of the structure,and varies with the structure characteristic.From the point of frequency characteristic of blasting vibration,the effect of structure damage induced by the blasting vibration was researched based on theoretical analysis.The results ahow that the structure has the selective amplification characteristic on the blast wave from the medium.
引文
[1]SAVELY J P.Designing a Final Blast to Improve Sta-bility[C].New Orleans,Louisiana:the SME Annual Meeting,1986.
[2]LANGEFORS U,KIHLSTROM B.The Modern Tech-nique of Rock Blasting[M].New York:John Wiley&Sons Inc,1973.
[3]HOLMBERG R,PERSSON P A.The Swedish Ap-proach to Contour Blasting[C]//Proceedings of the4th Conference on Explosive and Blasting Technique.[S.l.]:[s.n.],1978:113-127.
[4]BAUER A,CALDER P N.Open Pit and Blast Seminar[R].Course No.63221.Ontario:Mining Engineering Department,Queens University,1978.
[5]MOJTABAI N,BEATTIE S G.Empirical Approach to Prediction of Damage in Bench Blasting[J].Trans Inst Min and Metall,Sect A,1996,105:75-80.
[6]唐春海,于亚伦,王建宙.爆破地震动安全判据的初步探讨[J].有色金属,2001,53(1):1-4.
[7]夏晨曦,杨军,李顺波,等.最优小波包基算法在爆破振动信号去噪中的应用[J].爆破,2011.28(3):4-7.
[8]吴德伦,叶晓明.工程爆破安全振动速度综合研究[J].岩石力学与工程学报,1997,16(3):266-273.
[9]SINGH P K,ROY P M,SINHA A.Standardization of Blast Vibration Damage Threshold for the Safety of Res-idential Structures in Mining Area.[C]//The Asina-Pacific Symposium on Blasting Techniques.Beijing:Merallurgical Industry Press,2009:581-589.
[10]赵明生,梁开水,曹跃,等.爆破地震作用下建(构)筑物安全标准探讨[J].爆破,2008,25(4):24-27.
[11]赵明生,张亚文,徐海波,等.不同微差间隔下爆破振动信号的反应谱分析[J].爆破,2011,28(1):28-32.
[2]LANGEFORS U,KIHLSTROM B.The Modern Tech-nique of Rock Blasting[M].New York:John Wiley&Sons Inc,1973.
[3]HOLMBERG R,PERSSON P A.The Swedish Ap-proach to Contour Blasting[C]//Proceedings of the4th Conference on Explosive and Blasting Technique.[S.l.]:[s.n.],1978:113-127.
[4]BAUER A,CALDER P N.Open Pit and Blast Seminar[R].Course No.63221.Ontario:Mining Engineering Department,Queens University,1978.
[5]MOJTABAI N,BEATTIE S G.Empirical Approach to Prediction of Damage in Bench Blasting[J].Trans Inst Min and Metall,Sect A,1996,105:75-80.
[6]唐春海,于亚伦,王建宙.爆破地震动安全判据的初步探讨[J].有色金属,2001,53(1):1-4.
[7]夏晨曦,杨军,李顺波,等.最优小波包基算法在爆破振动信号去噪中的应用[J].爆破,2011.28(3):4-7.
[8]吴德伦,叶晓明.工程爆破安全振动速度综合研究[J].岩石力学与工程学报,1997,16(3):266-273.
[9]SINGH P K,ROY P M,SINHA A.Standardization of Blast Vibration Damage Threshold for the Safety of Res-idential Structures in Mining Area.[C]//The Asina-Pacific Symposium on Blasting Techniques.Beijing:Merallurgical Industry Press,2009:581-589.
[10]赵明生,梁开水,曹跃,等.爆破地震作用下建(构)筑物安全标准探讨[J].爆破,2008,25(4):24-27.
[11]赵明生,张亚文,徐海波,等.不同微差间隔下爆破振动信号的反应谱分析[J].爆破,2011,28(1):28-32.
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