Development of a Method of Analyzing Behavior of Cast-in-place Pile Bore Walls Using the Shear Strength Reduction FEM

Because a method of assessing safety factors, such as train running stability and track deformation at pile construction, has not yet been established, when constructing cast-in-place piles near tracks or existing structures, work must be limited to within the track closure time, and careful deformation prevention work must be done almost every time construction is performed. Due to work time limitations and deformation prevention, the construction period and costs are increased, resulting in greater overall time and expenses required for the project. In light of that, deregulating work time and limiting deformation prevention work only to that which is really needed by being able to confirm safety at pile construction are urgent issues. The authors studied and improved an analysis by the three-dimensional elasto-plasticity finite element method that incorporated the shear strength reduction method (SSR-FEM), in order to enable quantitative assessment of safety at pile construction. The authors were able to confirm effectiveness of this analysis method and complete development of analysis software, as summarized in this article.

• Record URL:
  http://www.jreast.co.jp/e/development/tech/pdf_21/Tec-21-40-45eng.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/51815943
• Authors:
  • Ota, Masahiko
  • Watanabe, Yasuo
  • Shimizu, Mitsuru
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 40-45
• Serial:
  • JR East Technical Review
  • Issue Number: 21
  • Publisher: East Japan Railway Culture Foundation
  • ISSN: 1347-8907
  • Serial URL: https://www.jreast.co.jp/e/development/tech/

Subject/Index Terms

• TRT Terms: Cast in place structures; Finite element method; Pile foundations; Railroad construction; Shear strength; Structural stability (Mathematics)
• Uncontrolled Terms: Bored piles
• Subject Areas: Construction; Design; Railroads;

Filing Info

• Accession Number: 01372984
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 15 2012 4:04PM