Results 11 to 20 of about 2,986 (254)

A PRAXIS ON DATA QUALITY EVALUATION OF UNDERGROUND PIPELINE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Underground pipelines are known as “life line”. With the rapid developing of city, more and more pipelines like power lines will move into underground.
H. T. Zhao   +3 more
doaj   +1 more source

Evolution of Acoustic Pulses in Damaged Underground Pipelines [PDF]

open access: yesUchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 2021
The research is of increasing relevance due to the need for recommendations on improving the existing methods for rapid detection of pipeline damage at the early stages of hydrocarbon liquid flow into the ground through the damaged areas. To detect possible pipeline damage that occurs during the transportation of hydrocarbon liquids, a technique of ...
V.Sh. Shagapov   +2 more
openaire   +2 more sources

Discussion on feasibility of pipeline laying in underground space from the perspective of improving sensing ability

open access: yesYou-qi chuyun, 2021
At present, the biggest safety risk and accident source of pipeline systems can be attributed to the lack of sensing ability of buried pipelines to a large extent.
Bi-yuan SHUI   +5 more
doaj   +1 more source

Numerical analysis of nonstationary heat transfer influence in the zones of underground thermal pipelines on their thermal regimes and heat losses

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2018
The relevance of the research is caused by the need to develop new approaches to the study of thermal regimes and thermal losses of underground pipelines and it is confirmed by the main provisions of the Energy Strategy of Russia for the period up to ...
Vyacheslav Yurievich Polovnikov
doaj   +1 more source

A Comprehensive Review of Acoustic Methods for Locating Underground Pipelines

open access: yesApplied Sciences, 2020
Underground pipelines are vital means of transporting fluid resources like water, oil and gas. The process of locating buried pipelines of interest is an essential prerequisite for pipeline maintenance and repair.
Ying Liu   +6 more
doaj   +1 more source

Metallography of an Underground Oil Pipeline

open access: yesOpen Journal of Metal, 2018
The purpose of this article is to show a metallographic analysis of an underground pipeline taken out of operation upon failure. The pipeline had an 8.89 cm (3.5”) diameter and a 7 mm thickness. The study was based on a 45 cm long pipe sample, visibly and entirely corroded, with a fish-mouth crack along its length.
Francisco Casanova-del-Angel   +1 more
openaire   +2 more sources

A corrosion risk assessment method for underground gas storage ground pipeline based on data and knowledge dual drivers [PDF]

open access: yesYouqicang pingjia yu kaifa
The research and application of risk analysis and evaluation for underground gas storage facilities are critical due to their diverse equipment, complex process flows, and numerous risk factors.
BI Caixia
doaj   +3 more sources

Design of and Research on underground pipeline system in campus based on 3DGIS [PDF]

open access: yesE3S Web of Conferences, 2020
The underground pipeline of campus is an extremely complex and huge system, and the traditional pipeline management mode can no longer meet the requirements of campus development and planning.
Ma Rui   +3 more
doaj   +1 more source

Safety Risk Analysis and Protective Control of Existing Pipelines Affected by Deep Pit Excavation in Metro Construction

open access: yesModelling and Simulation in Engineering, 2019
Urban underground pipelines undertake many tasks closely related to people’s daily life and production, such as water supply, drainage, gas supply, and power supply. Metro projects are usually located in areas with dense underground pipelines; therefore,
Bin Hu, Xiaoqing Li, Dan Huang
doaj   +1 more source

Underground polymeric l-shaped pipeline vibrations under seismic effect [PDF]

open access: yesE3S Web of Conferences, 2021
The simultaneous equations of longitudinal and transverse vibrations of an underground polymeric L-shaped pipeline under the arbitrary direction of seismic load were derived in the paper.
Nishonov Nematilla   +4 more
doaj   +1 more source

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