A research for Class II defect Bored Pile's Accept Criteria: A case of Penang Second Marine bridge

3rd International Conference on Energy Equipment Science and Engineering

Huang, Kang^1

China Highway Planning and Design Institue, Beijing

100088, China^1

关键词: Bored piles;    Class II;    Concrete coring;    Large diameter bored piles;    Sonic logging;    Structural capacities;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012080/pdf
DOI  :  10.1088/1755-1315/128/1/012080

来源: IOP

【 摘 要 】

The aim of this preliminary research is to study the accept criteria of class II bored pile with subtle defect. According to a detailed comparison of the existed different standards, Chinese ones are more applicable especially for the large diameter bored piles. Through the concrete coring at pile No P25-03 of this case and the comparison to the actual calculation, the Class II pile's defects were very minor. Comparison was also made for the effects on pile structural capacities before and after repair of the defects. the feasible repair proposal may bring forward to more defects to the piles. The Class II piles don't need any further repairation when piles have typical of similar character and sonic logging test result with P25-03's one. For other Class II piles with some differences in characters, verification is needed through further concrete coring on the pile. The recommendation of this research could be adopted for the similar huge marine structures which installed large diameter bored piles.