Depth Evaluation of Submerged Pile Bents

Helsin Wang, Chih Hsin Hu, Thành Vinh Nguyên, Chung Yue Wang

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

Developing an appropriate and efficient inspection pattern for an unknown bridge substructure is a critical issue for bridge engineers, contractors, and bridge agencies. This paper introduces a two-phase near-surface inspection strategy to determine the foundation depth of fully submerged pile bents of an existing bridge. Electrical resistivity tomography inspection provided the overall interface between bridge substructure and surrounding soft soils. Ultraseismic inspection provided more information to determine the depth of the substructure. Time-lapse waveform image analysis and frequency analysis of ultraseismic inspection results also displayed varying degrees of reliability for estimating the pile bent length, which was positively confirmed with the bridge design charts. The entire set of investigations demonstrated strong conclusiveness in determining the foundation depths when the results from these two testing methods were corroborated with appropriate analysis modes.

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文章編號06019003
期刊Journal of Performance of Constructed Facilities
34
發行號1
DOIs
出版狀態已出版 - 1 2月 2020

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