Soil Restraint Against Horizontal Motion of Pipes

Audibert, Jean M.E.; Nyman, Kenneth J.

doi:10.1061/ajgeb6.0000500

Cited by 105 publications

(7 citation statements)

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“…Focussing on pipe behaviour, the pipe in case A displaced drastically not only laterally but also upwards. Ono et al (2016) reported pipe uplift associated with lateral displacement in liquefied ground when the pipe moved along the slope of the failure surface as suggested by Audibert and Nyman (1977). Note that the unit weight of the model pipe in this study was adjusted to that of the saturated silica sand to avoid buoyancy-related uplift of the pipe.…”

Section: Pipes After Experimentsmentioning

confidence: 79%

“…Many researchers have taken interest in the lateral movement of pipes in soil. Experimental studies have been conducted using straight pipes under ordinary gravitational conditions of 1 g to obtain the relationship between the resistance force and the lateral displacement (Audibert and Nyman, 1977;Trautmann and O'Rourke, 1985;Hsu, 1993). In recent years, numerical analyses using the Distinct Element Method and Finite Element (FE) Method have been carried out to investigate pipe-soil interaction in a plane strain condition (Yumsiri and Soga, 2006;Kouretzis et al, 2013;Roy et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Effects of gravel layer as thrust restraint for pipe bends subjected to earthquake loading

Ohta

Sawada

Ariyoshi

et al. 2022

International Journal of Physical Modelling in Geotechnics

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This paper reports effects of gravel layers as a thrust restraint in a pipe bend subjected to earthquake loading based on the shaking table tests in a centrifuge. The model pipe was buried under four backfill conditions differing in the existence and layout of a gravel layer. The pipe was pulled laterally with a constant load, simulating the thrust force generated at bends in pressure pipelines with diameters of 1800 mm. Shakings were conducted on the model pipe with lateral loading. The test results showed that the gravel surrounding the pipe was effective as a thrust restraint for pipes of large diameter. A gravel layer on the passive side was found to be particularly crucial. A gravel layer on the active side provided no thrust-restraint effect, although it did reduce pipe displacement amplitude. A gravel layer on the upper half of the passive side of the pipe likely contributed to mitigation not only of lateral displacement but also of pipe uplift.

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Section: Pipes After Experimentsmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Effects of gravel layer as thrust restraint for pipe bends subjected to earthquake loading

Ohta

Sawada

Ariyoshi

et al. 2022

International Journal of Physical Modelling in Geotechnics

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“…The coefficient of horizontal subgrade reaction (k h ) is a critical parameter for modeling soil behavior in pile-soil systems. Drawing on the concept of bearing capacity, as elaborated in the works of Bowles and Audibert et al [53,54], Habibagahi and Langer [49] proposed a method to compute k h for granular soils. This computation involves the effective overburden stress (σ ′ v ) and the pile lateral deflection (y), formulated as follows:…”

Section: Derivation Of Force Vs Displacement Curvesmentioning

confidence: 99%

A State-of-the-Art Review on Computational Modeling of Dynamic Soil–Structure Interaction in Crash Test Simulations

Yosef,

Faller,

Fang

et al. 2024

Geotechnics

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The use of nonlinear, large-deformation, dynamic finite element analysis (FEA) has become a cornerstone in crash test simulations, playing a pivotal role in evaluating the safety performance of critical civil infrastructures, including soil-embedded vehicle barrier systems. This review paper offers a detailed examination of numerical modeling methodologies employed for simulating dynamic soil–structure interactions in crash test simulations, with a particular focus on dynamic impact pile–soil interaction. This interaction is a critical determinant in assessing the effectiveness of soil-embedded barrier systems during vehicular impacts. Our extensive review methodically categorizes and critically evaluates four prevalent modeling methodologies: the lumped parameter method, the subgrade reaction method, the modified subgrade reaction approach, and the direct or mesh-based continuum method. We explore each methodology’s underlying philosophy, strengths, and shortcomings in accurately simulating the dynamic interaction between soil and piles under impact loading. This technical review aims to provide a thorough understanding of the critical and distinctive aspects of modeling soil’s dynamic responses under impact loading conditions. Moreover, this paper is envisioned to serve as a foundational reference for future research endeavors, steering the advancement of innovative simulation techniques for tackling the dynamic impact soil–structure interaction problem.

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“…This led to the introduction of a criterion for pipeline failure based on relative stiffness. Beyond analytical and numerical simulation methods, some researchers have conducted extensive studies using full-scale, large-scale, and small-scale indoor experiments by establishing experimental platforms [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Safety Analysis and Condition Assessment of Corroded Energy Pipelines under Landslide Disasters

Zhang,

Liu,

Liu

et al. 2023

Applied Sciences

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Corrosion poses a significant risk to the safety of energy pipelines, while landslide disasters emerge as the primary threat responsible for triggering pipeline failures across mountainous areas. To date, there is limited research focused on the safety of energy pipelines considering the synergistic effect of corrosion and landslides. The present study proposes a finite element (FE)-based model to assess the condition of corroded pipelines under landslides. The effects of corrosion dimensions (length and depth) and location are determined. A novel equation is finally developed to predict the maximum stress and determine the most disadvantageous position for corroded pipelines under various landslide displacements. The results demonstrate that (1) as the landslide progresses, the pipeline’s stress significantly increases; (2) corrosion depth has a more significant impact on the pipeline condition than the corrosion length, and it is positively correlated with the pipe’s stress; (3) the maximum stress exhibits a nonlinear relationship with the landslide-facing position and the corrosion circumferential location; and (4) when the axial position of the corrosion is more than 6.5 m away from the center of the landslide, the location of maximum stress shifts from the corrosion region to the central section of the pipeline within the landslide. This work contributes to helping pipeline owners to understand the applicability of energy pipelines subjected to the combined effects of corrosion and landslides and provides support for future risk assessment efforts in pipeline integrity management.

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Soil Restraint Against Horizontal Motion of Pipes

Cited by 105 publications

References 0 publications

Effects of gravel layer as thrust restraint for pipe bends subjected to earthquake loading

Effects of gravel layer as thrust restraint for pipe bends subjected to earthquake loading

A State-of-the-Art Review on Computational Modeling of Dynamic Soil–Structure Interaction in Crash Test Simulations

Safety Analysis and Condition Assessment of Corroded Energy Pipelines under Landslide Disasters

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