SETTLEMENT OF SURROUNDING GROUNDS DUE TO EXISTENCE OF PILE PULLING-OUT HOLES

Authors

  • Shuichi Kuwahara
  • Shinya Inazumi

Keywords:

Finite element method, Pile foundation, Pulling-out method, Pulling-out hole

Abstract

The demolition of social infrastructures including the civil structures have been increasing
because of aging them constructed during in a period of high economic growth and decrease in their utilization
with a population decrease, in recent years. As a result, removal works of existing pile in the ground have been
increasing. Pulling-out method is adopted for removal of existing a pile foundation in the present circumstances.
However, after pulling-out a pipe foundation, decline of mechanical characteristic of surrounding ground is
concerned by forming pulling-out holes. There are no regulations yet for filler injected into a pulling hole, and
the influence of the strength of the filler on surrounding ground is not considered. This study considers the
influence by which a pulling-out hole of a pipe foundation gives it to static characteristics of surrounding
ground by using 3D elastic-plastic finite element analysis. The special qualities required for fillers injected into
a pulling-out hole are also clarified in this study.

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Published

2021-02-27

How to Cite

Shuichi Kuwahara, & Shinya Inazumi. (2021). SETTLEMENT OF SURROUNDING GROUNDS DUE TO EXISTENCE OF PILE PULLING-OUT HOLES. GEOMATE Journal, 16(54), 81–85. Retrieved from https://geomatejournal.com/geomate/article/view/2637

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