Junction Stresses in Buried Jointed Pipelines

Singhal, A.C.; Meng, Chian‐Lee

doi:10.1061/(asce)0733-947x(1983)109:3(450)

Cited by 8 publications

(2 citation statements)

References 1 publication

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“…The semi rigid bell-and-spigot joint of the PCCP connecting two adjacent pipe segments is an important component of the buried pipeline. The junction stresses and axial force at the pipe can be significantly reduced by incorporating a flexible joint (Singhal and Meng, 1983). The PCCP joint consists mainly of a bell ring, a spigot ring, and rubber gasket (see Figure 1).…”

Section: Pccp Jointmentioning

confidence: 99%

Damage evaluation of a PCCP joint with a localized soil void and broken wires

Feng

Chen

et al. 2021

Advances in Structural Engineering

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During the service life of a pipeline, the surrounding soil may erode locally around the pipe due to seepage and leakage, making the pipe partially unsupported and weakening the pipe–soil interaction. The presence of soil voids provides the possibility for broken wires and further accelerates damage. In this paper, the stress and strain of PCCP joint in service under a localized soil void and with broken wires were investigated using the general finite element software ABAQUS, and the structural damage of the pipe joint under superimposed defects was evaluated. The numerical model contained two PCCP segments, a flexible joint and the surrounding soil. The preliminary study suggests that the superimposed defects of a soil void and broken wires can cause increased damage to the PCCP joint. With the addition of the soil void, the micro cracks of both the concrete core and mortar coating transform into visible cracks, and the relative wire breakage rate with coupling defects is reduced by approximately 36% to reach the elastic limit state of the pipe. The findings of this research highlight the importance of good pipe–soil interactions and could provide a theoretical reference for damage assessment and further repair strategies.

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Section: Pccp Jointmentioning

confidence: 99%

Damage evaluation of a PCCP joint with a localized soil void and broken wires

Feng

Chen

et al. 2021

Advances in Structural Engineering

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“…Newmark himself [2] and later Kennedy et al [3], Singhal [4], Trautmann et al [5,6] Nyman et al [7] proposed simplified alternatives that reduced checks to simple operations. These methods were systematized and popularized with the Guide by the American Society of Civil Engineers (ASCE) [8] that unified the procedures followed worldwide.…”

Section: Introductionmentioning

confidence: 99%

A numerical and semi-analytical comparison for structural analysis of fault-crossing pipelines

González

Fraile

Hermanns

2015

Comptes Rendus. Mécanique

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Structural analysis of pipelines is a well-established topic in engineering practice. Different professional societies or national and international authorities have provided Design Codes with procedures that, in spite of being well accepted, contain assumptions whose implications are not always well understood. In this paper, we present a comparison between a simplified well-established method to compute the safety of gas pipes when crossing faults, and a more refined approach: the Finite Element Method (FEM) that enables us to consider large displacements and nonlinear material properties and shows some discrepancies relative to the classical approach.

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