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http://dx.doi.org/10.14481/jkges.2021.22.6.5

Estimation of Appropriate Reinforcement Length of Casing for the Pile of Pile Bent System through Numerical Analysis  

Yang, Wooyeol (Namkwang Engineering & Construction Co., LTD.)
Kim, Wanho (Department of Civil and Environmental Engineering, Daejin University)
Lee, Kangil (Department of Civil Engineering, Daejin University)
Publication Information
Journal of the Korean GEO-environmental Society / v.22, no.6, 2021 , pp. 5-15 More about this Journal
Abstract
One of the construction methods applied as a pier foundation type is a single type cast-in-place pile. In applying a pile bent system as a foundation type, the main concern in designing can be said to secure the lateral bearing capacity of pile structure in system. In addition, to increase the rigidity of the pile structure, a method of increasing the lateral bearing capacity by reinforcing the pile structure with a casing has been used. However, although the reinforcing effect and appropriate reinforcing length of casing may vary depending on the soil conditions, there is insufficient studies on this, and for this reason, the entire pile structure in a pile bent system is reinforced with a casing, in the field. In addition, if the length of the entire pile is reinforced with a casing, it may lead to delays in construction and increase in construction costs. That is, in order to more effectively reinforce the pile structure with a casing, it is necessary to study the lateral bearing characteristics of the reinforced pile structure in system. And it should be determined the appropriate reinforcing length of the casing from the evaluated bearing characteristics. Therefore, in this study, the lateral bearing characteristics of piles applied with the reinforcing length of casing for each condition were evaluated through a numerical analysis. And, based on the analysis results, the appropriate reinforcing length of casing was proposed. As a result of the study, it was found that in order to effectively increase the lateral bearing capacity of pile structure, the reinforcing length of casing should be applied twice the influence range of the bending behavior of the pile, 1/β.
Keywords
Pile bent system; Numerical analysis; Reinforcing length of casing; Lateral bearing characteristics;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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