On buckling of inner steel pipe under external pressure for water supply lines constructed in shield-driven tunnel

Jian Hong Wang; Atushi Koizumi; Atushi Watanabe

On buckling of inner steel pipe under external pressure for water supply lines constructed in shield-driven tunnel

Jian Hong Wang, Atushi Koizumi, Atushi Watanabe

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

when large-diameter lined water supply lines is constructed in deep underground, the reliable design of the inner steel pipes should take into account the groundwater pressure. In this paper, the buckling behavior of ring-stiffened pipes was studied and buckling design was investigated. According to numerical analysis, the buckling behavior of stiffened pipes under external pressure is very different from that of general cylindrical shells; the effects of flexural rigidity and the spacing of rings are of vital importance to buckling behavior. Based on the results obtained, conclusions were drawn as follows: 1) Buckling types of stiffened pipes under external pressure were verified as general and local buckling of shells, 2) General and local buckling types can be determined by the second moment of area and the spacing of ring stiffeners, 3) Buckling design of ring-stiffened pipes can be improved by considering buckling behavior.

Original language	English
Title of host publication	Real Structures: Bridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
Pages	341-346
Number of pages	6
Volume	4
Publication status	Published - 2006
Event	10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010 - Bangkok Duration: 2006 Aug 3 → 2006 Aug 5

Other

Other	10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
City	Bangkok
Period	06/8/3 → 06/8/5

Keywords

Buckling
Deep underground
External pressure
Inner steel pipe
Water supply lines

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction

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Wang, J. H., Koizumi, A., & Watanabe, A. (2006). On buckling of inner steel pipe under external pressure for water supply lines constructed in shield-driven tunnel. In Real Structures: Bridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010 (Vol. 4, pp. 341-346)

On buckling of inner steel pipe under external pressure for water supply lines constructed in shield-driven tunnel. / Wang, Jian Hong; Koizumi, Atushi; Watanabe, Atushi.

Real Structures: Bridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010. Vol. 4 2006. p. 341-346.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, JH, Koizumi, A & Watanabe, A 2006, On buckling of inner steel pipe under external pressure for water supply lines constructed in shield-driven tunnel. in Real Structures: Bridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010. vol. 4, pp. 341-346, 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010, Bangkok, 06/8/3.

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abstract = "when large-diameter lined water supply lines is constructed in deep underground, the reliable design of the inner steel pipes should take into account the groundwater pressure. In this paper, the buckling behavior of ring-stiffened pipes was studied and buckling design was investigated. According to numerical analysis, the buckling behavior of stiffened pipes under external pressure is very different from that of general cylindrical shells; the effects of flexural rigidity and the spacing of rings are of vital importance to buckling behavior. Based on the results obtained, conclusions were drawn as follows: 1) Buckling types of stiffened pipes under external pressure were verified as general and local buckling of shells, 2) General and local buckling types can be determined by the second moment of area and the spacing of ring stiffeners, 3) Buckling design of ring-stiffened pipes can be improved by considering buckling behavior.",

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AB - when large-diameter lined water supply lines is constructed in deep underground, the reliable design of the inner steel pipes should take into account the groundwater pressure. In this paper, the buckling behavior of ring-stiffened pipes was studied and buckling design was investigated. According to numerical analysis, the buckling behavior of stiffened pipes under external pressure is very different from that of general cylindrical shells; the effects of flexural rigidity and the spacing of rings are of vital importance to buckling behavior. Based on the results obtained, conclusions were drawn as follows: 1) Buckling types of stiffened pipes under external pressure were verified as general and local buckling of shells, 2) General and local buckling types can be determined by the second moment of area and the spacing of ring stiffeners, 3) Buckling design of ring-stiffened pipes can be improved by considering buckling behavior.

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