Numerical Stress-Strain Analysis of Buried Steel Pipelines Crossing Active Strike-Slip Faults with an Emphasis on Fault Modeling Aspects

Trifonov, O. V.

doi:10.1061/(asce)ps.1949-1204.0000177

Cited by 75 publications

(21 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The latter cannot be realized in common design procedures, where the beamtype FEM model is implemented. Thus, either research results are necessary for the quantification of the effect of trench widening on soil spring properties (Chaloulos et al, 2015) or using the continuum FEM model is necessary [e.g., Trifonov (2015)]. …”

Section: Friction Reduction Measuresmentioning

confidence: 99%

“…Newmark and Hall (1975) were the pioneers in this ongoing effort, presenting a pertinent simplified analytical methodology, considering the pipe as a long cable subjected to relative small displacements caused by a planar fault dividing the ground into two blocks. Then, several researchers extended this analytical procedure by taking into account material non-linearity and non-symmetric conditions regarding the pipe deformation (Kennedy et al, 1977;Kennedy and Kincaid, 1983;Wang and Yeh, 1985;Wang and Wang, 1995;Takada et al, 2001;Karamitros et al, 2007Karamitros et al, , 2011Trifonov andCherniy, 2010, 2012) and the pipe service loads (Zhang et al, 2016b).…”

mentioning

confidence: 99%

“…However, local buckling and tensile fracture are not directly "captured" by the numerical analysis and must instead be identified by comparing developing strains to code-based limits. This model has been used by researchers [e.g., Ogawa et al (2004), Joshi et al (2011), Chaudhary et al (2013, Uckan et al (2015), and Liu et al (2016) The second model is the continuum one, where the pipe is modeled with shell elements, the surrounding soil with 3D solid elements, and the pipe-soil interface with contact elements [e.g., Kokavessis and Anagnostidis (2006), Odina and Tan (2009), Vazouras et al (2010Vazouras et al ( , 2012Vazouras et al ( , 2015, Zhang et al (2014Zhang et al ( , 2016a, and Trifonov (2015)]. This model allows the direct investigation of local buckling occurrence and the consideration of trench geometry and detailed fault movement, as well as the use of more detailed soil material laws.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of Seismic Protection Methods for Buried Fuel Pipelines Subjected to Fault Rupture

Gantes

Melissianos

2016

Front. Built Environ.

View full text Add to dashboard Cite

Buried steel fuel pipelines are critical lifelines for the society and the economy but are very vulnerable to earthquake-induced ground failure. Traversing seismic areas inevitably results in several pipe-fault crossings. Fault rupture forces a buried pipeline to undergo deformations that could be substantial and heavily endanger its integrity. Due to the grave consequences of a potential pipe failure, mitigating measures are commonly applied at pipe-fault crossings to reduce the effects of a potential fault activation. In this paper, a comparative review of several measures that are used in practice or have been proposed in the technical literature is presented. Numerical analyses are then carried out to compare the effectiveness of commonly used measures and to extract conclusions regarding their applicability. Results indicate that the most efficient among the evaluated measures are pipe placement within culverts and use of flexible joints. Trench backfilling with pumice is a moderately effective measure in terms of pipe protection, while steel grade upgrade, wall thickness increase, and pipe wrapping with geotextile are found to be insufficient protection methods.

show abstract

Section: Friction Reduction Measuresmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Seismic Protection Methods for Buried Fuel Pipelines Subjected to Fault Rupture

Gantes

Melissianos

2016

Front. Built Environ.

View full text Add to dashboard Cite

show abstract

“…Pipe (elbow) elements have the advantage in calculation efficiency, but they are incapable of demonstrating the pipe wall folding phenomenon in pipe, when local buckling occurs. Soil constraints on pipe can be modeled by discrete nonlinear soil spring elements or the surface-to-surface contact between the shell elements simulating pipe and the continuum solid elements simulating surrounded soil [16]. Adopting the numerical models, stress and strain behaviors of different kind buried pipes under various types of active faults have been studied.…”

Section: Introductionmentioning

confidence: 99%

Local Buckling Behavior and Plastic Deformation Capacity of High-Strength Pipe at Strike-Slip Fault Crossing

Liu

Zhang

Wang

et al. 2017

Metals

View full text Add to dashboard Cite

Abstract:As a typical hazard threat for buried pipelines, an active fault can induce large plastic deformation in a pipe, leading to rupture failure. The mechanical behavior of high-strength X80 pipeline subjected to strike-slip fault displacements was investigated in detail in the presented study with parametric analysis performed by the finite element model, which simulates pipe and soil constraints on pipe by shell and nonlinear spring elements respectively. Accuracy of the numerical model was validated by previous full-scale experimental results. Insight of local buckling response of high-strength pipe under compressive strike-slip fault was revealed. Effects of the pipe-fault intersection angle, pipe operation pressure, pipe wall thickness, soil parameters and pipe buried depth on critical section axial force in buckled area, critical fault displacement, critical compressive strain and post buckling response were elucidated comprehensively. In addition, feasibility of some common buckling failure criteria (i.e., the CSA Z662 model proposed by Canadian Standard association, the UOA model proposed by University of Alberta and the CRES-GB50470 model proposed by Center of Reliable Energy System) was discussed by comparing with numerical results. This study can be referenced for performance-based design and assessment of buried high-strength pipe in geo-hazard areas.

show abstract

“…As a result, such comprehensive numerical analyses are still confined at the research stage, and relatively few examples exist of 3D simulations involving the large-strain non-linear response of all the elements of the problem, i.e., the structure, the soil, and the soil-structure interface (e.g., [11], [21], [22], [25], [26], [33], [34]). In some research works (e.g.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of the interaction of pressurized large diameter gas buried pipelines with normal fault ruptures

Özcebe

Paolucci

Mariani

2017

Soil Dynamics and Earthquake Engineering

View full text Add to dashboard Cite

Abstract:There is a growing attention towards the seismic response of large diameter pipelines, owing to the potential adverse impact on economy and civilized life of a structural collapse under earthquake effects, such as strong ground shaking, and other earthquake related effects such as fault rupture, landsliding and liquefaction. The intersection of a fault rupture with a pipeline is of special concern, because the safety verification is affected by significant uncertainties in the loading condition, related to the unknown exact location where the fault offset may occur, the unknown amount of the offset itself, as well as the intersection angle of the fault rupture with the pipe axis. Besides, the inherent analytical/numerical complexity of the problem may require 3D finite element models with non-linear constitutive laws and large deformations.In this paper a summary is presented of a comprehensive set of 3D numerical simulations of the interaction of a large diameter gas pipeline with a normal fault rupture, with the main objectives of: 1) throwing light on the pipeline performance under increasing levels of fault offset, including crosssectional buckling and ovalization; 2) providing a parametric set of results, including the variability of the fault-pipe intersection angles, of the mechanical properties of the pipe-soil interface, as well as of the operating conditions, in terms of internal gas pressure and temperature variations.Keywords: fault-soil-pipeline interaction, 3D finite element modeling, performance based seismic design Affiliations:1.

show abstract

Numerical Stress-Strain Analysis of Buried Steel Pipelines Crossing Active Strike-Slip Faults with an Emphasis on Fault Modeling Aspects

Cited by 75 publications

References 14 publications

Evaluation of Seismic Protection Methods for Buried Fuel Pipelines Subjected to Fault Rupture

Evaluation of Seismic Protection Methods for Buried Fuel Pipelines Subjected to Fault Rupture

Local Buckling Behavior and Plastic Deformation Capacity of High-Strength Pipe at Strike-Slip Fault Crossing

Numerical modeling of the interaction of pressurized large diameter gas buried pipelines with normal fault ruptures

Contact Info

Product

Resources

About