Longitudinal Deformation Wave in a Buried Pipeline Subject to Viscoelastic Interaction with Soil

Khusainov, R. B.

doi:10.1007/s11204-020-09625-8

Cited by 10 publications

(10 citation statements)

References 5 publications

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“…Let us consider the problem of longitudinal vibration of an underground main pipeline under linear viscoelastic interaction at the contact with soil, at three types of fastening [22,25].…”

Section: Statement Of the Problemmentioning

confidence: 99%

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Underground main pipeline behaviour under a travelling impulse in the form of a triangle

et al. 2021

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The article presents an analysis of the dynamic response of an underground main pipeline under the action of a longitudinal wave, propagating in soil along the pipe. It is assumed that the elastic pipe has a finite length. A linear viscoelastic model of the "pipe-soil" system interaction is considered. The influence of a pulse in the form of a triangle on the deformed state of an underground main pipeline is investigated. The article presents a comparative analysis of the results obtained for some values of the coefficients of elastic and viscous interaction, the propagation velocity, and the duration of the pulse. In the case of elastic interaction of the "pipe-soil" system, the reflection of the wave propagating in the underground pipeline on the boundaries of the pipeline when it coincides with the wave propagating in the soil leads to an increase in the maximum deformation of the underground pipeline, the value of deformation can double. The viscosity coefficient of interaction at the pipe-soil system contact leads to the wave front attenuation in the underground pipeline. For soils with the coefficient of viscous interaction higher than 100 kN∙s/m2, this leads to complete attenuation of the bursts at the wave front in the pipeline. The influence of the wave propagation in soil on the deformation values at the wave front was also studied.

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“…Let us consider the problem of longitudinal vibration of an underground main pipeline under linear viscoelastic interaction at the contact with soil, at three types of fastening [22,25].…”

Section: Statement Of the Problemmentioning

confidence: 99%

“…The effect of the coefficients of elasticity, viscosity and plasticity of the pipeline interaction with soil on the stress-strain state of an underground pipeline is studied in detail in [21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Underground main pipeline behaviour under a travelling impulse in the form of a triangle

et al. 2021

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“…By using the integral probability method, Xu et al [28] deduced analytical formulas for the pipeline's deformation and axial stress caused by the friction of pipe and soil, and pipeline's stress and deformation along the mining process were analyzed. On the basis of linear viscoelasticity, Khusainov [11] established a pipe-soil interaction model, and the buried pipeline's dynamic response to a longitudinal wave propagating was analyzed. However, the above analytical models have not considered the axial and circumferential response of the buried pipeline under load impact.…”

Section: Introductionmentioning

confidence: 99%

Dynamic reliability evaluation of buried corroded pipeline under rockfall impact

Wang¹,

Xie²,

Su³

2022

Eksploatacja i Niezawodność – Maintenance and Reliability

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Load impact, such as the rockfall, may bring significant threats to the integrity management of pipeline. This study is intended to evaluate the reliability of buried pipeline under rockfall impact, and so as to reduce the possible failure and unnecessary downtime. Firstly, the dynamic response of the buried pipeline under load is analyzed by Euler Bernoulli foundation beam. After that, the process of rockfall impact on buried corroded pipeline is simulated with nonlinear finite element method. Furthermore, the influence of rockfall’s parameters (including rockfall mass, impact velocity, impact position, etc.) on the pipeline’s equivalent stress is quantitatively analyzed. Eventually, a time-varying reliability model is established to calculate the failure probability. The results indicate that the mass and velocity of the rockfall have obvious influence on the pipeline’s failure probability, and the change of impact’s position has small influence. The proposed method can provide a theoretical reference for the design and maintenance of buried pipeline.

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“…In that study, the problem is solved by the finite difference method in an explicit scheme. Careful numerical calculations are performed to prevent unwanted vibrations near the discontinuity (the deformation wave front) [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…In [10][11][12][13][14], the effect of the coefficients of elasticity, viscosity, and plasticity of the pipeline contact interaction with soil on the stress-strain state of an underground pipeline is studied in detail. In [5,12], the longitudinal vibration of an underground pipeline with and without inertia forces is compared for an infinite pipeline and a pipeline of finite length with rigid fixing at the ends.…”

Section: Introductionmentioning

confidence: 99%

Inertia force effect on longitudinal vibrations of underground pipelines

et al. 2021

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Longitudinal Deformation Wave in a Buried Pipeline Subject to Viscoelastic Interaction with Soil

Cited by 10 publications

References 5 publications

Underground main pipeline behaviour under a travelling impulse in the form of a triangle

Underground main pipeline behaviour under a travelling impulse in the form of a triangle

Dynamic reliability evaluation of buried corroded pipeline under rockfall impact

Inertia force effect on longitudinal vibrations of underground pipelines

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