Theoretical study on buckling of deep water pipeline under external hydrostatic pressure

Jianhong Wang, Atsushi Koizumi

研究成果: Article

3 引用 (Scopus)

抄録

Generally, the main water pipeline is built through installing steel pipes or iron pipes inside a shield tunnel or NATM tunnel and filling the annular void to form an integrated structure. However, the problem of buckling of inner pipe exists for such a structure because the most of the existing filling technologies fail to produce a tightly fitted liner. When the water pipeline is built deep underground, the separated structure should be adopted in order to ensure the minimum cross section of the tunnel as well as the safety of water pipe. In this study, the buckling of stiffened water pipe used for separated structure is investigated. Firstly, the formulas of general buckling and local buckling are derived with Ritz method, and the methods of the formulas application are given in terms of the critical pressure calculation and the buckling behavior simulation. Secondly, the methods are verified by numerical analysis and existing experiments. Finally, the local buckling design method for separated water pipeline structure is proposed, taking into account of the buckling characters of a practical water pipeline.

元の言語English
ページ(範囲)588-602
ページ数15
ジャーナルDoboku Gakkai Ronbunshuu A
64
発行部数3
DOI
出版物ステータスPublished - 2008
外部発表Yes

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Water pipelines
Hydrostatic pressure
Buckling
Pipe
Tunnels
Steel pipe
Numerical analysis
Water
Iron

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Mechanical Engineering
  • Building and Construction

これを引用

Theoretical study on buckling of deep water pipeline under external hydrostatic pressure. / Wang, Jianhong; Koizumi, Atsushi.

:: Doboku Gakkai Ronbunshuu A, 巻 64, 番号 3, 2008, p. 588-602.

研究成果: Article

Wang, Jianhong ; Koizumi, Atsushi. / Theoretical study on buckling of deep water pipeline under external hydrostatic pressure. :: Doboku Gakkai Ronbunshuu A. 2008 ; 巻 64, 番号 3. pp. 588-602.
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