Soil restraint against horizontal motion of pipes

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

doi:10.1016/0148-9062(78)91731-x

Cited by 32 publications

(44 citation statements)

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“…Demars ͓4͔,Swanson and Jones ͓5͔,Bea and Aurora ͓6͔,Audibert et al ͓7,8͔,and Summers and Nyman ͓9͔ all adopted the conventional approach to study drag forces on buried pipelines in an unstable clay-rich slope. Georgiadis ͓10͔ investigated the strain-rate dependency of the drag force on a pipeline embedded in a moving clay-rich soil mass and modified the conventional geotechnical approach.…”

Section: Pipeline-soilmentioning

confidence: 99%

Review of State-Of-The-Art: Drag Forces on Submarine Pipelines and Piles Caused by Landslide or Debris Flow Impact

Zakeri

2008

Journal of Offshore Mechanics and Arctic Engineering

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Submarine landslides and debris flows are among the most destructive geohazards, economically and environmentally, for installations on the seafloor. Estimating the drag forces caused by these geohazards is an important design consideration in offshore engineering. A summary of the major methods available for estimating the drag forces on pipelines and piles caused by a mass gravity soil movement has been presented and compared with one another. The methods available are limited in terms of the application and provide a wide range of estimates. There is significant room for improvement and new research to advance the state-of-the-art.

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Section: Pipeline-soilmentioning

confidence: 99%

Review of State-Of-The-Art: Drag Forces on Submarine Pipelines and Piles Caused by Landslide or Debris Flow Impact

Zakeri

2008

Journal of Offshore Mechanics and Arctic Engineering

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“…This difference has not impeded the use of earth pressure theory for pipes when burial depth (i.e., to the center of the pipe) is less than about 8 to12 o D (Audibert and Nyman 1977).…”

Section: Lateral Earth Pressure Theoriesmentioning

confidence: 99%

“…This P-y curve approach has been used for pipes in the 1970's (Audibert and Nyman, 1977), and has been in ASCE guidance documents for pipeline design since the 1980's (ASCE, 1984). The approach used in ASCE (1984) is a hyperbolic P-y curve plot, as shown in Figure 1.…”

Section: P-y Curves In Current Pipeline Design Practicementioning

confidence: 99%

Soil Parameters for Assessing Axial and Transverse Behavior of Restrained Pipelines—Part 2: Transverse Behavior

2014

Pipelines 2014

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Understanding soil-structure interaction behavior of the pipe-soil interface is essential in the characterization and assessment of thrust restraint resistance mechanisms in buried pipelines. Two primary forms of resistance mechanisms, axial and transverse, contribute to the resistance of unbalanced thrust forces that arise at a bend, valve, tee or other similar sources of thrust in a buried pressure pipeline. The individual contribution from each mechanism depends on the material properties and constitutive relations of the pipe segments, pipe joints, soil, and the soil-pipe interface; internal and external loadings on the pipeline; and installation conditions. In the water/wastewater industry, pipeline designers frequently rely on guidance from AWWA standards and design manuals. These guidance documents are developed by distinct material-specific standard committees, and the contents are based on differing simplifying assumptions, theories and design philosophies and are often uncoordinated. In most cases, the rationale behind the recommended soil parameters is either undocumented or based on unidentified assumptions. This practice leads to inconsistent guidance on selection of soil parameters for use in the soil-structure interaction analysis of different pipe materials, and makes improvement of design practices to be extremely difficult.

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“…Moreover, experimental studies were initiated by Audibert and Nyman [16] and Takada [17] through the physical modeling of pipelines subjected to PGDs. Thereafter, a series of large and small scale modeling of pipelines subjected to strike-slip and normal faulting were carried out by O'Rourke et al [18,19], Choo et al [20] and Ha et al [21,22,23].…”

Section: Introductionmentioning

confidence: 99%

Response of buried oil and gas pipelines subjected to reverse faulting: A novel centrifuge-finite element approach

2017

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Buried pipelines, transporting fuels, inevitably face active faults when they pass through various seismic regions. These faults may damage the pipelines severely; hence numerous analytical, physical and numerical studies have been conducted with their own pros and cons to investigate the pipeline response due to the faulting. In the present study, an innovative combination of centrifuge and numerical modeling methods has been employed to overcome the geometrical limitation of the small scale physical modeling. Then, it is applied for investigation of buried pipelines response due to reverse faulting. Initially, two centrifuge tests with the fixed end pipelines have been conducted and employed as the benchmarks for the verification of a numerical model. Then, the calibrated numerical model has been used to develop the novel pipeline spring-like end connection system which is supposed to represent the response of the omitted pipeline parts. Eventually, a centrifuge test was conducted, employing the novel end connection system which verified the proper performance of the system. Then, the model is employed for investigation of buried pipelines response due to reverse faulting and the results are also presented.

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Soil restraint against horizontal motion of pipes

Cited by 32 publications

References 0 publications

Review of State-Of-The-Art: Drag Forces on Submarine Pipelines and Piles Caused by Landslide or Debris Flow Impact

Review of State-Of-The-Art: Drag Forces on Submarine Pipelines and Piles Caused by Landslide or Debris Flow Impact

Soil Parameters for Assessing Axial and Transverse Behavior of Restrained Pipelines—Part 2: Transverse Behavior

Response of buried oil and gas pipelines subjected to reverse faulting: A novel centrifuge-finite element approach

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