The application of CFRP to strengthen buried steel pipelines against subsurface explosion

Mokhtari, Mojtaba; Nia, Ali Alavi

doi:10.1016/j.soildyn.2016.04.009

Cited by 36 publications

(17 citation statements)

References 32 publications

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“…They are damage in the coating, erosion and corrosion which can lead principal problem met in industry to internal and external crack in the structure of the pipeline. According to the gravity of the problem, the harmful effects are the pressure bearing capability in the pipeline and they can reduce his lifespan or a failure of the structure [1][2][3][4][5]. The best means of reparation of canalization is the bonded composite wrap because he is installed during T the continuity flow of the fluid and there is not hot work in order to avoid the risk of explosion.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the geometrical parameters of bonded composite wrap for repairing cracked pipelines

Nesreddine

Bouadjra

Abdelkader

2018

Frattura Ed Integrità Strutturale

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In this study the finite element method is used to analyze the performances of bonded composite wrap repair of cracked steel pipelines. Parametric analysis was performed in order to highlight the effects of the geometrical properties on the repair efficiency. The experimental design method is used to explore the effects of wrap dimensions (length, angle and thickness) in order to optimize the repair process. We showed in using the MOODE.5 software the most dominant geometrical parameters on stress intensity factor at the crack front which to determine the most important parameters on the repair efficiency. This optimization can help the composite wrap designers to improve the repair performance and rehabilitation.

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Section: Introductionmentioning

confidence: 99%

Optimization of the geometrical parameters of bonded composite wrap for repairing cracked pipelines

Nesreddine

Bouadjra

Abdelkader

2018

Frattura Ed Integrità Strutturale

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“…e parameters are shown in Table 1. By using ABAQUS built-in subroutine JH2 concrete material [21], the parameters are shown in Table 2.…”

Section: Materials Parametersmentioning

confidence: 99%

Study on the Propagation Law of Water Hammer Wave in Underwater Blasting and the Reducing Effect of Air Curtain on Water Hammer Wave

Wang³

et al. 2021

Shock and Vibration

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The harmful effects (water hammer wave, flying stone, and broken quality of concrete) produced in the process of underwater drilling and blasting are the key factors affecting the safety of underwater drilling and blasting. In fact, the harm caused by the water hammer wave is the most significant. As a consequence, it is of great significance to study the propagation law of water hammer waves. Based on the background of the cofferdam demolition project at the inlet section of Shibishan Central Canal in Ningguo City, China, a three-dimensional numerical model was established based on Coupled Eulerian–Lagrangian (CEL) method. Besides, the propagation law of water hammer waves at different water depths with different millisecond times was studied. Meanwhile, the reduction effect of the water hammer wave at different positions of the bubble curtain was analyzed. The results showed that, in the direction of the minimum resistance line of the charge, the attenuation law of the water hammer wave is accorded with the Cole formula and attenuated exponentially. The attenuation speed of the water hammer wave increased at first and then decreased with the increase of the millisecond time. In addition, the attenuation rate of the peak pressure was the fastest when the millisecond interval 30 ms was used. The attenuation of the water hammer wave at different water depths decreased at first and then decreased with the increase of water depth. The attenuation law of the water hammer wave decreased linearly with the increase of the distance between the bubble curtain and the charge. The research results can provide particular guiding significance for similar on-site construction.

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“…Using the TM-5 empirical equations [32], the upper and lower boundaries for peak pressure of every point in the soil with respect to the explosion point can be obtained.…”

Section: Vulnerability Assessmentmentioning

confidence: 99%

Security vulnerability assessment of gas pipelines using Discrete-time Bayesian network

Fakhravar

Khakzad

Reniers

et al. 2017

Process Safety and Environmental Protection

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The application of CFRP to strengthen buried steel pipelines against subsurface explosion

Cited by 36 publications

References 32 publications

Optimization of the geometrical parameters of bonded composite wrap for repairing cracked pipelines

Optimization of the geometrical parameters of bonded composite wrap for repairing cracked pipelines

Study on the Propagation Law of Water Hammer Wave in Underwater Blasting and the Reducing Effect of Air Curtain on Water Hammer Wave

Security vulnerability assessment of gas pipelines using Discrete-time Bayesian network

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