Results 11 to 20 of about 7,756 (268)

Evaluation of the Application Effect and Improvement Method of Corrosion Monitoring Technology for Buried Thermal Insulation Pipelines [PDF]

open access: yesCailiao Baohu, 2023
In order to further clarify the cathodic protection effect of buried thermal insulation pipeline,improve the cathodic protection monitoring technology,reduce oilfield maintenance costs and ensure the safe operation of buried insulation pipeline in ...
XUE Kailin, HU Zhiqiang, LIU Lele
doaj   +1 more source

Numerical Simulation on the Response of Adjacent Underground Pipelines to Super Shallow Buried Large Span Double-Arch Tunnel Excavation

open access: yesApplied Sciences, 2022
The excavation of a shallow buried tunnel may cause stress redistribution in surrounding rock, and cause deformation, damage, and even destruction of adjacent underground pipelines.
Jianxiu Wang   +8 more
doaj   +1 more source

An Investigation into the Tunnel-Soil-Pipeline Interaction by In Situ Measured Settlements of the Pipelines

open access: yesAdvances in Civil Engineering, 2020
Response of buried pipeline to tunnelling is of great concern in the subway construction. It is of paramount importance but difficult to estimate the influence of tunnelling on adjacent pipelines because of the complex tunnel-soil-pipeline interaction ...
Xinggao Li, Ting Wang, Yi Yang
doaj   +1 more source

Additional Stress on a Buried Pipeline under the Influence of Coal Mining Subsidence

open access: yesAdvances in Civil Engineering, 2018
Buried pipelines influenced by coal mining subsidence will deform and generate additional stress during surface deformation. On the basis of the coordinating deformation relationship between buried pipeline and its surrounding soils, a stress analysis ...
Ping Xu   +4 more
doaj   +1 more source

Leakage Analysis and Hazardous Boundary Determination of Buried Gas Pipeline Considering Underground Adjacent Confined Space

open access: yesEnergies, 2022
Urban underground construction projects are intertwined vertically and horizontally, and adjacent confined spaces such as water supply and drainage pipelines, side ditches and underground canals may exist near buried gas pipelines.
Zhixue Wang   +8 more
doaj   +1 more source

Study on Distribution Characteristics of Metro Stray Current and Evaluation of Cumulative Corrosion Effect

open access: yesAdvances in Civil Engineering, 2022
Stray current directly affects the regular operation of electrical equipment and facilities in the subway DC traction power supply system. Therefore, it is worthwhile to study the stray current distribution characteristics during train operation and the ...
Shan Lin   +5 more
doaj   +1 more source

Study on Dynamic Strain Regularity and Influencing Factors of Shallow Buried Metal Pipe under Collapse Impact Load

open access: yesShock and Vibration, 2018
With the combination of model experiment and numerical simulation, we explore the effect of collapse height, weight, and pipe-soil stiffness ratio on dynamic strain of shallow buried metal pipe under the collapse impact load.
Min Wang   +5 more
doaj   +1 more source

Current Trends and Perspectives of Detection and Location for Buried Non-Metallic Pipelines

open access: yesChinese Journal of Mechanical Engineering, 2021
Buried pipelines are an essential component of the urban infrastructure of modern cities. Traditional buried pipes are mainly made of metal materials. With the development of material science and technology in recent years, non-metallic pipes, such as ...
Liang Ge   +8 more
doaj   +1 more source

Experimental and Numerical Study on the Strain Behavior of Buried Pipelines Subjected to an Impact Load

open access: yesApplied Sciences, 2019
Long-distance oil and gas pipelines are inevitably impacted by rockfalls during geologic hazards such as mud-rock flow and landslides, which have a serious effect on the safe operation of pipelines. In view of this, an experimental and numerical study on
Feifei Dong   +4 more
doaj   +1 more source

Optimization of induced voltage on a buried pipeline from HV power lines using grasshopper algorithm (GOA)

open access: yesDiagnostyka, 2021
The buried metallic pipeline which parallels the HV power line is subject to induced voltages from the AC currents flowing in the conductors, these voltages can affect the operating personnel, pipeline associated equipment, and the pipeline integrity ...
Khadidja Bouallag   +2 more
doaj   +1 more source

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