爆破开挖的振动效应与安全判据
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摘要
分析和研究了爆破振动效应主要控制因素和安全判据。介绍了临近重要保护物、特殊地层中的开挖爆破振动效应与安全判据和隧道爆破开挖对上覆建筑物的振动影响及安全控制。现场测定结果与研究表明,不同条件下的开挖爆破引发的地震波衰减规律不同,并根据质点振动速度,提出了重点文物、岩溶隧道和冻土隧道、地铁等环境条件下的爆破振动安全标准。
The paper analyzes and studies the main control factors and safety criteria of blast-vibration effect,and describes the adjacent important objects to be protected,the vibration effect and safety criteria of blasting for excavation in special stratum,the vibration effect and of blasting tunnelling on the overlying buildings and their safety control.The site measurement results and research show that excavation blasting under different conditions can induce seismic waves with different attenuation laws.In light of the particle vibration velocity,the safety criteria of blast-vibration for such environmental conditions as major cultural relics,karst tunnel,frozen earth tunnel and subway are proposed.
The paper analyzes and studies the main control factors and safety criteria of blast-vibration effect,and describes the adjacent important objects to be protected,the vibration effect and safety criteria of blasting for excavation in special stratum,the vibration effect and of blasting tunnelling on the overlying buildings and their safety control.The site measurement results and research show that excavation blasting under different conditions can induce seismic waves with different attenuation laws.In light of the particle vibration velocity,the safety criteria of blast-vibration for such environmental conditions as major cultural relics,karst tunnel,frozen earth tunnel and subway are proposed.
引文
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[4]余永强,杨小林,王伟.矿山爆破开挖对周围建筑物的影响[J].金属矿山,2004(10):69-72.
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[9]杨小林.渝怀铁路圆梁山隧道关键技术的试验研究[R].焦作:河南理工大学,2004.
[10]杨小林.深圳地铁隧道爆破开挖对地表建筑物的影响[R].焦作:河南理工大学,2003.
[2]杨桂通.弹塑性力学[M].北京:人民教育出版社,1980:54-55.
[3]余永强,邱贤德.路堑爆破开挖地震效应分析[J].重庆大学学报,2002,25(10):105-109.
[4]余永强,杨小林,王伟.矿山爆破开挖对周围建筑物的影响[J].金属矿山,2004(10):69-72.
[5]张其中.爆破安全法规标准选编[M].北京:中国标准出版社,1993:101-103.
[6]杨小林,余永强.洛界高速公路开挖爆破技术研究[R].焦作:河南理工大学,2002.
[7]杨振声.爆破振动对龙门石窟的影响测试研究报告[G].北京:煤炭工业出版社,1988.
[8]杨小林.风火山冻土隧道爆破技术研究[R].焦作:河南理工大学,2004.
[9]杨小林.渝怀铁路圆梁山隧道关键技术的试验研究[R].焦作:河南理工大学,2004.
[10]杨小林.深圳地铁隧道爆破开挖对地表建筑物的影响[R].焦作:河南理工大学,2003.
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