Large-Scale Fault Rupture Tests on Pipelines Reinforced with Cured-in-Place Linings

Argyrou, Christina; O’Rourke, Thomas D.; Stewart, Harry E.; Wham, Brad P.

doi:10.1061/(asce)gt.1943-5606.0002018

Cited by 28 publications

(17 citation statements)

References 18 publications

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“…Wham and O'Rourke (2016) examined the joint response of ductile iron (DI) pipes under large ground deformation and pointed out that the joint sealing performance was dominated by joint kinematics. Argyrou et al (2019) carried out full-scale tests to investigate the joint kinematics and sealing performance of DI pipes under even strike-slip fault condition. Compared to rigid pipes such as concrete pipes and vitrified clay pipes, DI pipes are semi-rigid pipes with higher ductility and larger tensile strength, therefore they have a higher chance to survive than rigid pipes under abrupt ground deformations.…”

Section: Andmentioning

confidence: 99%

“…According to the definition, rp varies from 0 to 1. Argyrou et al (2019) conducted a series of full-scale laboratory tests to investigate the structural response and sealing performance of DI pipes under strike-slip offsets in even condition, i.e., rp=0.5, with a crossing angle of θ=50° and a maximum faulting offset of approximately δ=150 mm. The test parameters are adopted here in the simulation.…”

Section: Beam-on-spring Finite Element Modelmentioning

confidence: 99%

“…According to Argyrou et al (2019), the peak transverse resistance is F tp =N qh γH c D = 30.1 kN/m, in which the dimensionless maximum lateral force is N qh = 11.5, the burial depth from ground surface to pipe centerline is H c = 850 mm, and the displacement corresponding to the peak resistance is δ tp =0.014H c = 11.9 mm. The peak frictional force F ap and the corresponding mobilization displacement δ ap for axial displacement are usually derived based on at-rest condition.…”

Section: Beam-on-spring Finite Element Modelmentioning

confidence: 99%

See 2 more Smart Citations

Joint kinematics and sealing capacity assessment of ductile iron pipes under abrupt transverse ground movements

Qin

Wang

2022

Can. Geotech. J.

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Joint kinematic behaviour, i.e., joint rotation and axial translation, can partially help pipelines to accommodate abrupt ground movements, and cause leaking if joint service limit is exceeded, even without any structural failure. Kinematic behaviour of bell-spigot jointed ductile iron (DI) pipes and its influence on joint sealing capacity under abrupt transverse ground movements are investigated in this study. Firstly, a beam-on-spring finite element analysis on joint kinematics of DI pipes is conducted, in which different fault-pipe crossing positions are implemented. Based on simulated results, a modified joint kinematic solution incorporating pipe deflection and joint shear force under different fault-pipe crossing positions is proposed. Then, a Monte Carlo simulation (MCS)-based reliability assessment procedure for joint sealing capacity is developed. Sensitivity analysis is subsequently conducted to investigate the effects of uncertainties associated with initial axial translation, soil properties, and crossing positions on the joint sealing capacity, and the effects of different deterministic solutions are compared. The proposed method allows engineers to effectively evaluate how the joint sealing capacity of DI pipes changes with consideration of uncertainties when abrupt transverse ground movements are encountered.

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Section: Andmentioning

confidence: 99%

Section: Beam-on-spring Finite Element Modelmentioning

confidence: 99%

Section: Beam-on-spring Finite Element Modelmentioning

confidence: 99%

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Joint kinematics and sealing capacity assessment of ductile iron pipes under abrupt transverse ground movements

Qin

Wang

2022

Can. Geotech. J.

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“…When the stress of the pipe is less than the yield limit, the material is in an elastic state. According to the recommendations of the country's ⟫Seismic Technical Code for Oil and Gas Transmission Pipeline Engineering⟫ [ 49 ], this paper selects the three-fold line model as the stress-strain curve of the pipeline steel [ 40 ]. The stress-strain relationship of the three-fold line material is shown in Figure 3 .…”

Section: The Reaction Of Buried Pipelines Under Soil Liquefactionmentioning

confidence: 99%

“…After the soil was liquefied, the resultant force of the horizontal normal force acting on the underground pipeline was increased by about an order of magnitude. Full-scale fracture test results on debonding, axial elongation, and bending properties of pipes with toroidal cracks and weak joints under sudden ground deformation were studied by Argyrou C et al [40]. In summary, the elastic foundation beam method based on Winkler model is mostly used in the calculation of force and deformation of buried pipelines in the liquefaction zone.…”

Section: Introductionmentioning

confidence: 99%

Theoretical analysis and finite element simulation of pipeline structure in liquefied soil

Yang

2021

Heliyon

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A mechanical analysis model for the floating of buried pipelines in soil liquefaction areas is established in this paper. In order to improve the inherent defects of the elastic foundation beam method based on the Winkler model and increase the calculation accuracy, the Pasternak model is introduced and the interaction between soil and spring is considered. A mechanical analysis method for buried pipelines in liquefaction zone considering axial load is proposed in present paper. According to the Pasternak model and the deflection curve differential equation, the pipe bending deformation curve equation and the deformation coordination equation are derived. The analytical calculation method of the pipe mechanical response is established. A new method of the mechanical analysis of the floating of buried pipelines in the liquefaction zone is provided. The mechanical response of the pipeline under the conditions of different pipeline parameters and liquefaction zone length is analyzed. The reliability of the analysis method in this paper is verified by the comparison of finite element method (FEM). Considering that the previous researches of scholars mainly focused on straight pipes, there are few studies on the pipe structure nodes in liquefied soil. The mechanical properties of the three-way pipe structure in the soil liquefaction zone are analyzed by the finite element method (FEM). The influence of pipe diameter, wall thickness, liquefied soil density, transition zone length, buried depth, and pipeline internal pressure on the mechanical response of the pipeline is analyzed.

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Mechanical response of concrete pipe rehabilitated by liner under external load: Analytical solution

Zhai,

Fang,

Wang

et al. 2023

Num Anal Meth Geomechanics

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Using pipe lines to rehabilitate concrete drainage pipes is a popular trenchless technique. In this paper, the concrete pipe and liner are equivalent to a symmetrical structural mechanics problem, and the mechanical solution of the composite structure is obtained using the force method. Subsequently, the analytical solutions are compared with the test and finite element results. The distribution law of axial force, bending moment, and shear force of the composite structure are obtained, and the circumferential strain law of the inner and outer surfaces of the host pipe is analyzed. Lastly, the influence of pipe diameter and liner thickness on the bearing capacity of the host pipe is examined. The results indicate that the axial and shear force distribution of the composite structure remains the same for different pipe diameters, as the distribution diagrams of shear and axial force along the circumferential direction coincide. While the elastic modulus and thickness of the liner have no effect on the internal force distribution of the composite structure, they do directly affect the stress state of the host pipe. Additionally, the bottom support causes abrupt changes in the bending moments and strains of the host pipe.

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Large-Scale Fault Rupture Tests on Pipelines Reinforced with Cured-in-Place Linings

Cited by 28 publications

References 18 publications

Joint kinematics and sealing capacity assessment of ductile iron pipes under abrupt transverse ground movements

Joint kinematics and sealing capacity assessment of ductile iron pipes under abrupt transverse ground movements

Theoretical analysis and finite element simulation of pipeline structure in liquefied soil

Mechanical response of concrete pipe rehabilitated by liner under external load: Analytical solution

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