冲击成孔桩施工振动的可接受控制标准探讨
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摘要
针对冲击成孔在城市施工引起的振动问题,主要考虑附近人群对振动强度的接受程度因素,在剖析国内外相关规范及标准的基础上,提出了人和建筑物可接受的控制标准。冲击施工过程中,对相邻建筑物进行了多方位的振动监测,同时对附近人群进行了调查记录,验证了标准的合理性,使该工程得以正常施工,达到了预期的效果。
The vibration caused by percussion boring in urban area will affect the people in surrounding areas.Taking the acceptable vibration degree into consideration,a control standard acceptable for people and buildings is proposed based on domestic and international specifications and standards.Monitoring of the vibration in different aspects was made for the adjacent buildings,and the people nearby were investigated as well.The standard was proved to be reasonable in controlling the vibration so that the construction of the project can be carried out and the plan can be achieved.
The vibration caused by percussion boring in urban area will affect the people in surrounding areas.Taking the acceptable vibration degree into consideration,a control standard acceptable for people and buildings is proposed based on domestic and international specifications and standards.Monitoring of the vibration in different aspects was made for the adjacent buildings,and the people nearby were investigated as well.The standard was proved to be reasonable in controlling the vibration so that the construction of the project can be carried out and the plan can be achieved.
引文
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[3]欧莉,卞华.冲击作用下桩的竖向振动分析[J].湖南师范大学自然科学学报,2001,24(2):52-54.(OU Li,BIAN Hua.Stake Vertical Vibration AnalysisUnder Impaction Load[J].Journal of Natural Science ofHunan Normal University,2001,24(2):52-54.(inChinese))
[4]林建生,吴淑美,王源毅,等.打桩对周围建筑物振动影响的研究与实测分析[J].地震地磁观测与研究,1999,20(4):24-29.(LIN Jian-sheng,WU Shu-mei,WANG Yuan-yi,et al.Research of the Vibration Influ-ence During Pilling Process on Nearby Buildings and theExamples Analysis[J].Seismological and GeomagneticObservation and Research,1999,20(4):24-29.(inChinese))
[5]林建生,谢文杰,林子健,等.大直径钻成孔灌注桩在桩基施工中振动影响的测试与分析[J].世界地震工程,2005,21(4):169-174.(LIN Jian-sheng,XIE Wen-jie,LIN Zi-jian,et al.Measurement and Analysis of theVibration Effect Induced by Large Diameter Bored Cast-in-place Pile in Its Piling Process[J].World Informationon Earthquake Engineering,2005,21(4):169-174.(inChinese))
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[7]GB6722—2003,爆破安全规程[S].北京:中国标准出版社.(GB6722—2003,Blasting Safety Specifications[S].Beijing:Standard Press of China.(in Chinese))
[8]《桩基工程手册》编写委员会.桩基工程手册[M].北京:中国建筑工业出版社,1995.(Compilation Commis-sion of Pile Foundation Engineering Handbook.PileFoundation Engineering Handbook[M].Beijing:ChinaBuilding Industry Press,1995.(in Chinese))
[9]郑健恺,李华,于志刚.强夯、打桩、爆破振动对建筑物影响的探讨[J].西北建筑与建材,2002,85(7):21-25.(ZHENG Jian-kai,LI Hua,YUZhi-gang.Analy-sis on Impact on Buildings by Vibration from DynamicCompaction,Piling and Blasting[J].Northwest Con-struction and Building Materials,2002,85(7):21-25.(in Chinese))
[10]倪永军,滕忻利,张雪峰,等.强夯地振动统计分析与评价[J].北京交通大学学报,2008,32(4):78-82.(NI Yong-jun,TENG Xin-li,ZHANG Xue-feng,et al.Statistical Analysis and Assessment of Ground Vibrationdue to Dynamic Compaction[J].Journal of Beijing Jiao-tong University,2008,32(4):78-82.(in Chinese))
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