[1]邵广周,孟昭秦,刘国华.缺损桩的导纳谱判别法及应用[J].地球科学与环境学报,2006,28(04):73-77.
SHAO Guang-zhou,MENG Zhao-qin,LIU Guo-hua.Method of Detecting Integrality of Defective Piles in
Terms of Characteristic of Mechanical Admittance
Spectrum and Its Engineering Application[J].Journal of Earth Sciences and Environment,2006,28(04):73-77.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]
- 卷:
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第28卷
- 期数:
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2006年第04期
- 页码:
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73-77
- 栏目:
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- 出版日期:
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2006-12-15
文章信息/Info
- Title:
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Method of Detecting Integrality of Defective Piles in
Terms of Characteristic of Mechanical Admittance
Spectrum and Its Engineering Application
- 作者:
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邵广周; 孟昭秦; 刘国华
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长安大学地质工程与测绘工程学院,陕西西安710054
- Author(s):
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SHAO Guang-zhou; MENG Zhao-qin; LIU Guo-hua
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School of Geological Engineering and Surveying Engineering, Chang’ an University, Xi’an 710054, Shaanxi, China
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- 关键词:
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桩基; 导纳谱; 振动; 模态分析; 集中质量
- Keywords:
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pile; admittance spectrum; vibration; modal analysis; lumped mass
- 分类号:
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TV32+3;P631.5
- DOI:
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-
- 文献标志码:
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A
- 摘要:
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利用振动工程中的模态分析技术,对桩基系统的振动特性进行研究。根据桩基系统的集中质量参数振
动模型,对完整桩和各种缺损桩模型的导纳谱进行了大量的正演计算,按照导纳谱特征与桩基的缺损类型及缺
损位置之间的对应关系,编制了相应的判读软件DSP1.0系统,实现了桩基完整性以及缺损桩缺损位置和缺损
性质的计算机自动判读。
- Abstract:
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The modal analysis technique in vibration engineering is used to study the vibration characteristic of the
pile system. The pile systems are simplified as different vibration systems with different degree of freedom. The
mechanical admittance spectrums of the intact pile and all kinds of defective piles are computed largely according
to the lumped mass model of the pile system. It is found that the characteristic of mechanical admittance spectrum
have some coincidence relations with the style and position of the defective piles. Therefore, the quality of the pile
foundation can be detected in terms of this characteristic. This principle is applied to actual engineering, and the
actual data is processed with proper data processing and spectrum analysis methods, the corresponding processing
software is also developed along with them. The result of actual measurement proves that the method is viable to
a certain degree if the model is selected expediently, and the interpretation software has some useful value too.
参考文献/References:
[1] 邱 畅,高广运. 桩基动测技术存在的问题 和发展趋势[J] . 住
宅科技,2002(2):25 34.
[2] 吴 琳,李天文. 基于 GIS 的沉降 监测数据分析 及其三维模
拟[J] . 地球科学与环境学报,2004,26(2):67 70.
[3] Frit zen C P,Bohl e K. Appli cation of Model Bas ed Dam age Iden
tif icati on to a Seismical ly Loaded St ructu res [J] . Sm art
Mat erials and S t ru ctures,2001,10(3):452 458.
[4] 何 剑,方仁宝,张晓伟,等. 田湾核电站某工程偏 移基桩性状
分析[J] . 地球科学与环境学报,2004,26(2):63 66.
[5] 王德兴,玉 岩,杨志华. 桩基质量 无损检测 中谱分析 方法的
讨论[J] . 黑龙江交通科技,2001,91(3):42 45.
[6] 孟昭秦. 锤击桩基动测的导纳谱研究[J] . 西安地 质学院学报,
1997,19(1):98 105.
[7] 孟昭秦,李 貅,何 林. 结构振动 数据数学 模型的线 性与非
线性刻划[J] . 西安工程学院学报,1999,21(2):34 38.
[8] 孟昭秦,何 林,刘士军. 结构损伤 线性与非 线性特征 谱模式
识别与应用[J] . 西安工程学院学报,1999 ,21(3):36 4.
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备注/Memo
- 备注/Memo:
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[收稿日期]2006-01-14
[基金项目]国家863项目(2005AA615010)
[作者简介]邵广周(1977-),男,山东单县人,讲师,博士研究生,从事地球物理教学与研究。
更新日期/Last Update:
2006-12-20