桥梁桩基爆破施工对邻近埋地天然气管线的影响
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摘要
桥梁桩基爆破施工对邻近埋地管道的振动影响不容忽视。结合张石高速公路桥梁桩基爆破工程,通过现场试验较系统地研究了爆破振动波的传播规律及对邻近埋地天然气管线安全的影响。结果表明:单段药量随着桩基深度的增加需要适时调整,延时时间可调控爆破振动速度;爆破振动波频率对埋地管道的影响很小。研究结果为实际工程的施工和设计提供了参考和依据。
The influence of blasting vibration induced by the bridge pile foundation construction on adjacent buried pipelines can't be ignored.According to blasting construction of bridge pile foundation located in Zhangjiakou-Shijiazhuang highway,the propagating regulation of vibration wave induced by blasting and influence of blasting vibration on adjacent buried gas pipelines were systematically studied by field test.The results show that it is necessary for quantity of one section explosive to be adjusted timely with the depth of pile foundation increasing;the interval time of millisecond blasting can regulate vibration velocity of blasting;the frequency of vibration wave had very little effect on buried gas pipeline.The research results provide reference and basis for the construction and design of similar project.
The influence of blasting vibration induced by the bridge pile foundation construction on adjacent buried pipelines can't be ignored.According to blasting construction of bridge pile foundation located in Zhangjiakou-Shijiazhuang highway,the propagating regulation of vibration wave induced by blasting and influence of blasting vibration on adjacent buried gas pipelines were systematically studied by field test.The results show that it is necessary for quantity of one section explosive to be adjusted timely with the depth of pile foundation increasing;the interval time of millisecond blasting can regulate vibration velocity of blasting;the frequency of vibration wave had very little effect on buried gas pipeline.The research results provide reference and basis for the construction and design of similar project.
引文
[1]中华人民共和国标准.《建筑抗震设计规范》(GB50011-2001)[S].北京:中国建筑工业出版社,2001.
[2]中华人民共和国标准.《爆破安全规程》(GB6722-2003)[S].北京:中国标准出版社,2004.
[3]罗忆,卢文波,陈明,等.爆破振动安全判据研究综述[J].爆破,2010,27(1):15-18.
[4]梁向前,谢明利,冯启,等.地下管线的爆破振动安全试验与测试[J].工程爆破,2009,15(4):66-68.
[5]周丽芬,顾家箙,李顺波.近输油管道边坡松动爆破震动分析[J].黑龙江科技学院学报,2008,18(6):452-455.
[6]魏小林,陈颖尧,郑炳旭.浅眼爆破地震波传播规律[J].工程爆破,2002,12(4):57-59.
[7]张继春,彭琼芳.岩体爆破地震波衰减规律的现场试验与分析[J].辽宁工程技术大学学报,2001,20(4):401.
[8]李彬峰.爆破地震效应及其控制措施分析[J].爆破,2003,20(2):84.
[2]中华人民共和国标准.《爆破安全规程》(GB6722-2003)[S].北京:中国标准出版社,2004.
[3]罗忆,卢文波,陈明,等.爆破振动安全判据研究综述[J].爆破,2010,27(1):15-18.
[4]梁向前,谢明利,冯启,等.地下管线的爆破振动安全试验与测试[J].工程爆破,2009,15(4):66-68.
[5]周丽芬,顾家箙,李顺波.近输油管道边坡松动爆破震动分析[J].黑龙江科技学院学报,2008,18(6):452-455.
[6]魏小林,陈颖尧,郑炳旭.浅眼爆破地震波传播规律[J].工程爆破,2002,12(4):57-59.
[7]张继春,彭琼芳.岩体爆破地震波衰减规律的现场试验与分析[J].辽宁工程技术大学学报,2001,20(4):401.
[8]李彬峰.爆破地震效应及其控制措施分析[J].爆破,2003,20(2):84.
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