Publication Date:
2020-10-04
Description:
Due to the poor geological conditions, unreasonable design principle or construction method, many quality defects often occur during the pre-stressed pipe piles field construction, which will greatly influence pipe piles normal service or result in engineering accident. To acquire some treatment measures of the defective pipe piles, we carried out a few theoretical researches on this type of pipe piles. First, the types of defective pre-stressed pipe piles were summarized. Then we explored the force and deformation characteristics of the defective pipe piles and brought forwards the relationship between pile-top displacement and residual bearing capacity. Finally, we offered some treatment measures for the defective pipe piles. Results show that the main performances of the defective pre-stressed pipe piles are pile deviation, incline and breakage. The residual bearing capacity of the incline pipe piles is less than half of the designed bearing capacity. And the top displacement of incline pipe pile is positively correlated with the square of sliding depth. Some treatment measures such as foundation adjustment, adding piles, splicing pile, and filling core can improve the defective pipe piles. The research results can provide some references for the similar engineering.
Print ISSN:
2324-8858
Electronic ISSN:
2324-8866
Topics:
Geosciences
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