能量法处理行车振动与爆破振动等效性探讨
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摘要
基于行车振动与爆破振动输入建(构)筑物能量的等效性,推导了行车振速换算成等效爆破振速的公式。探讨了参考爆破安全标准评价行车振动安全问题的方法。根据实测公路来往行车质点振动速度资料,将其换算成等效爆破振速,结果表明:多数工况下行车振动输入建筑物的最大输入能量密度与常规隧洞钻孔爆破相当;部分行进中的重型车辆与钻爆开挖对某些建(构)筑物结构造成的振动影响在同一量级。
Based on the equivalent energy content inputted to structures and buildings by traffic vibration and blasting vibration,a conversion formula about traffic vibration velocity and equivalent blasting vibration velocity was derived.A method of assessment of the traffic vibration safety problems was discussed with reference to the blasting safety standard.According to monitored traffic vibration velocity data,the equivalent blasting vibration velocity was converted.The results shows that the maximum input energy densities of traffic vibrations in most conditions are tantamount to normal tunnel blasting excavations.The impact of vibrations on some structures and buildings induced by some heavy vehicles are in the same magnitude as which induced by drilling and blasting.
Based on the equivalent energy content inputted to structures and buildings by traffic vibration and blasting vibration,a conversion formula about traffic vibration velocity and equivalent blasting vibration velocity was derived.A method of assessment of the traffic vibration safety problems was discussed with reference to the blasting safety standard.According to monitored traffic vibration velocity data,the equivalent blasting vibration velocity was converted.The results shows that the maximum input energy densities of traffic vibrations in most conditions are tantamount to normal tunnel blasting excavations.The impact of vibrations on some structures and buildings induced by some heavy vehicles are in the same magnitude as which induced by drilling and blasting.
引文
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[8]李洪涛.基于能量原理的爆破地震效应研究[D].武汉:武汉大学,2007.[8]LI Hong-tao.Study on effect of blast-induced seismic basedon energy theory[D].Wuhan:Wuhan University,2007.(inChinese)
[9]李国保.基于能量法的爆破振动特性和安全判据研究[D].武汉:武汉大学,2011.[9]LI Guo-bao.Study on blasting vibration characteristics andsafety criterion based on energy theroy[D].Wuhan:Wu-han University,2011.(in Chinese)
[10]李夕兵,凌同华,张义平.爆破振动信号分析理论与技术[M].北京:科学出版社,2009:37-41.[10]LI Xi-bing,LING Tong-hua,ZHANG Yi-ping.Blastingvibration signal analysis theory and technology[M].Bei-jing:Science Press,2009:37-41.(in Chinese)
[2]KORKMAZ K A.Investigation of traffic-induced vibrationson masonry buildings in turkey and countermeasures[J].Journal of Vibration and Control,2011,17(1):3-10.
[3]曹艳春,夏禾.振动对建筑物的影响及其控制标准[C]∥第十一届全国结构工程学术会议论文集:第Ⅱ卷.北京:清华大学出版社,2002:1195-1199.[3]CAO Yan-chun,XIA He.Study on the impact and ControlCriterion of vibration on Buildings[C]∥TheⅡVolumeConference Proceedings of 11th National Structure Engi-neering Academic Conference.Beijing:Tsinghua Universi-ty Press,2002:1195-1199.(in Chinese)
[4]孟昭博.西安钟楼的交通振动响应分析及评估[D].西安:西安建筑科技大学,2009.[4]MENG Zhao-bo.Analysis and assessment of the vibration re-sponds traffic-induced of Xi'an bell tower[D].Xi'an:Xi'anUniversity of Architecture&Technology,2009.(in Chinese)
[5]马军,袁灯平.道路行车对房屋振动影响评价方法的探讨[J].住宅科技,2011,31(S1):118-120.[5]MA Jun,YUAN Deng-ping.Discussion for assessment ofthe vibration impact on buildings induced by vehicles[J].Housing Science,2011,31(S1):118-120.(in Chinese)
[6]刘风钱,赵明生,池恩安.爆破振动与车辆振动信号时频特性对比分析[J].爆破,2010,27(4):105-108.[6]LIU Feng-qian,ZHAO Ming-sheng,CHI En-an.Compara-tive analysis of time-frequency characteristic betweenblasting vibration and vehicle vibration signals[J].Blas-ting,2010,27(4):105-108.(in Chinese)
[7]王浩,柳墩利,程建军.爆破振动及列车振动荷载作用下隧道动力响应实测对比研究[J].铁道建筑,2009(12):69-91.[7]WANG Hao,LIU Dun-li,CHENG Jian-jun.Comparativestudy on the dynamic response of the tunnel under the loadsof blasting-induced vibration and train-induced vibration[J].Railway Engineering,2009(12):69-91.(in Chinese)
[8]李洪涛.基于能量原理的爆破地震效应研究[D].武汉:武汉大学,2007.[8]LI Hong-tao.Study on effect of blast-induced seismic basedon energy theory[D].Wuhan:Wuhan University,2007.(inChinese)
[9]李国保.基于能量法的爆破振动特性和安全判据研究[D].武汉:武汉大学,2011.[9]LI Guo-bao.Study on blasting vibration characteristics andsafety criterion based on energy theroy[D].Wuhan:Wu-han University,2011.(in Chinese)
[10]李夕兵,凌同华,张义平.爆破振动信号分析理论与技术[M].北京:科学出版社,2009:37-41.[10]LI Xi-bing,LING Tong-hua,ZHANG Yi-ping.Blastingvibration signal analysis theory and technology[M].Bei-jing:Science Press,2009:37-41.(in Chinese)
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