Research on Quantitative Analysis Foundation Pile Defects
[1]DU Siyi,SONG Shibo.Research on Quantitative Analysis Foundation Pile Defects[J].Journal of Zhengzhou University (Engineering Science),2012,33(05):34-38.[doi:10.3969/j.issn.1671-6833.2012.05.008]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 05
Page number:
34-38
Column:
Public date:
2012-09-10
- Title:
- Research on Quantitative Analysis Foundation Pile Defects
- CLC:
- TU198+.6
- DOI:
- 10.3969/j.issn.1671-6833.2012.05.008
- Abstract:
- Low strain reflected wave method can detect the defect location of a pile but can’t detect defect se-verity in integrity testing. Relative to the defect position, defect severity is more important, The frequency perturbation theory is adopted to quantitatively detect the foundation pile defects in this paper. The damage identi.fication parameters were defined at first. Then, the formulae and method of quantifying identification defectswere presented by perturbation matrix and dynamics theories of foundation pile. The damage identification pa.rameter was determined by the optimization method, At last, the aceuracy and feasibility of this method wereverified by model pile experiments, and the experiment results show that the method could accurately detectthe severity of pile defects.
- References:
- -
- Similar References:
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Last Update:
1900-01-01