Wharf on piles is a main structure in costal engineering. Working in severe ocean circumstance, the security of wharfs is important. Recent years, the inspection and appraisal method of wharf on piles is highly regarded. Because wharf is a complex system, there are still many difficulties in scientific appraising the technical status of the wharf. This paper systematically states the main procedure or of inspection and appraisal of wharf on piles. Concerned that the wharf is still working while inspecting, some non-destructive testing method is applied in the procedure. In addition the paper points out some key factors that can spoil wharf structure based on inspection result.
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