A case study of boiling which occurred during construction of caisson type piles — K-line viaduct pier in Kitakyushu City —

DOI Web Site Web Site 2 References Open Access

Bibliographic Information

Other Title
  • K線高架橋下部工の深礎掘削に伴うボイリングの発生事例と解析
  • Kセン コウカケハシ カブ コウ ノ シンソ クッサク ニ トモナウ ボイリング ノ ハッセイ ジレイ ト カイセキ

Search this article

Abstract

In large and/or deep excavations of soil with a high groundwater level, the three-dimensional concentration of seepage flow is a problem. Boiling (or blow out of soil particles) occurred during the construction of caisson type piles under the K-line viaduct pier in Kitakyushu City. A ground surface　area of 10.8×10.8 m was surrounded by sheet piles (III type) 11.0 m long, and a working platform was constructed at 5 m below the surface. Four caisson type piles (consisting of rings of 0.5 m in height, and　2.0 m inner and 2.5 m outer diameters) were driven manually to a depth of 13.5 m. Soil particles blew out at the 4.5 to 6.0 m level under the working platform. In this paper, analyses of the FEM seepage flow　and stability against seepage failure are conducted, and the characteristics of seepage flow and seepage failure stability are discussed.

Journal

References(2)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top