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Letteratura scientifica selezionata sul tema "Passive Piles"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 26 luglio 2025

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Articoli di riviste sul tema "Passive Piles"

Hanna, A. M., and A. Afram. "Pull-out capacity of single batter piles in sand." Canadian Geotechnical Journal 23, no. 3 (1986): 387–92. http://dx.doi.org/10.1139/t86-054.

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The pull-out capacity of single rigid vertical and batter piles in sand and subjected to axial loading has been investigated. Good agreement was found when test results on instrumented model piles were compared with theoretical estimates. The effect of pile inclination on the pull-out capacity has been explained by means of variable mobilized passive earth pressure on the pile's perimeter. A design method and charts are presented. Key words: pile foundation, pull-out capacity, vertical pile, batter pile, sand–soil mechanics.

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Zhou, Dequan, Qin Zhu, and Chuangye Wang. "Experimental Investigation on Performances of Battered Piles Resisting Embankment-Induced Lateral Soil Movement." Applied Sciences 13, no. 18 (2023): 10333. http://dx.doi.org/10.3390/app131810333.

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The performance of passive battered piles resisting the embankment-induced lateral soil movements may differ from that of the active battered pile and axially loaded existing vertical piles adjacent to embankment constructions. This study was part of a preliminary feasibility investigation for a reinforcement plan of an actual embankment project, aiming to experimentally investigate the performance of passive battered piles under embankment-induced lateral soil movement. To this end, a sequence of reduced-scale model tests of battered piles near the surcharges was first designed in sandy soil

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Ren, Xiang, Lijuan Luo, Yunxin Zheng, Jiakuan Ma, and Xuexu An. "Morphological Evolution of Passive Soil Arch in Front of Horizontal Piles in Three Dimensions." Buildings 12, no. 7 (2022): 1056. http://dx.doi.org/10.3390/buildings12071056.

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The anti-slide pile is a primary method of landslide control. The effect of the passive soil arch in front of the embedded section of piles has a significant effect on the anti-slide pile’s bearing capacity. The upgraded model test scheme was used to conduct model tests with a pile spacing four times the width of the pile and a geometric scale ratio of 1:15. The anti-slide pile stress, pile bending strain, and soil stress in front of the pile were all studied in relation to the loading amount. In addition to the model test, the numerical simulation method was utilized to investigate the three-

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Zhang, Hao, Minglei Shi, Lei Yang, and Yuancheng Guo. "A Semianalytical Solution for Passively Loaded Piles Adjacent to Surcharge Load." Advances in Civil Engineering 2020 (June 10, 2020): 1–19. http://dx.doi.org/10.1155/2020/2398389.

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Piles adjacent to a surcharge load commonly support not only active loads from superstructures but also the passive loads caused by soil lateral movement. To investigate the influence of passive load and the response along pile shafts of existing actively loaded piles, a load transfer model for analyzing the soil-pile interaction was developed based on plastic deformation theory and the triparameter soil model. An analytical solution for the deformation and internal force of such piles was proposed using the transfer matrix method, in which the transfer matrix coefficients for piles in free, p

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Liu, Jinglei, Xiuxin Li, Jinyuan Cao, Zhengchun Duan, Qingzhi Ye, and Guishuai Feng. "Geometric Parameter Effects on Bandgap Characteristics of Periodic Pile Barriers in Passive Vibration Isolation." Symmetry 16, no. 9 (2024): 1130. http://dx.doi.org/10.3390/sym16091130.

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To investigate the impact of the geometric parameters of periodic pile barriers on bandgap characteristics in passive vibration isolation, a two-dimensional, three-component unit cell was developed using the finite element method (FEM). This study analyzed the bandgap properties of periodic pile barriers and validated the effectiveness of the FEM through model testing. The FEM was then methodically applied to evaluate the effects of pipe pile thickness, periodic constant, arrangement pattern, and cross-sectional shape on the bandgap characteristics, culminating in the proposition of a novel H-

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Wang, Qingshan, Zhaoran Xiao, Xianqiang Zhao, and Dakuo Feng. "The Effects and Vertical Bearing Capacity of Two Jacked Model Piles in Sand." Sustainability 14, no. 21 (2022): 14493. http://dx.doi.org/10.3390/su142114493.

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The effects and vertical bearing capacity of two jacked piles in sand are still not well understood, and the mechanism of the adjacent pile’s uplift caused by the jacking pile in a double pile system is especially unclear, but these facets are important to the stability of the jacked pile. In this paper, a series of tests is performed on jacked model piles in sand, where in the influences of the pile length and the driving pile’s speed on the effects and vertical bearing capacity of two jacked piles were studied. The results revealed that the effects and vertical bearing capacity of the two ja

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Guo, Wei Dong. "Response of rigid piles during passive dragging." International Journal for Numerical and Analytical Methods in Geomechanics 40, no. 14 (2016): 1936–67. http://dx.doi.org/10.1002/nag.2490.

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Li, Tingting, Min Yang, and Xiaocen Chen. "A Simplified Analytical Method for the Deformation of Pile Foundations Induced by Adjacent Excavation in Soft Clay." Buildings 13, no. 8 (2023): 1919. http://dx.doi.org/10.3390/buildings13081919.

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The development of foundation excavations in congested urban areas inevitably induces stress release and soil movements, resulting in additional lateral deflections in adjacent pile foundations, commonly referred to as passive loading piles. Prior research on pile deflection resulting from nearby excavations primarily focused on single-pile behavior and paid little attention to the characteristics of pile groups. This paper presents a two-step approach to predicting the behavior of pile deformation resulting from nearby excavation. Firstly, Mindlin solution in combination with the double Gauss

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Xie, Yu, Shao-he Zhang, and De-quan Zhou. "Experimental Study of Mechanical Behavior of Passive Loaded Piles Adjacent to Piled Foundation." KSCE Journal of Civil Engineering 22, no. 10 (2018): 3818–26. http://dx.doi.org/10.1007/s12205-018-0565-x.

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Karim, M. R., S. C. R. Lo, and C. T. Gnanendran. "Behaviour of piles subjected to passive loading due to embankment construction." Canadian Geotechnical Journal 51, no. 3 (2014): 303–10. http://dx.doi.org/10.1139/cgj-2012-0468.

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Behaviour of two embedded piles subjected to passive loading due to construction of an embankment was modelled in this paper. The piles were installed at the berm section of an embankment in a later stage of its construction. The investigation was carried out using a combination of two- and three-dimensional analyses. The analysis results were compared with the field-measured values and they agreed well.

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Tesi sul tema "Passive Piles"

CAFERRI, LEONARDO. "Elasto-plastic models for the response of passive rigid piles." Doctoral thesis, Università Politecnica delle Marche, 2017. http://hdl.handle.net/11566/245380.

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Paratie di pali passivi sono state adottate con successo nel passato sia come intervento stabilizzante di fenomeni franosi attivi sia al fine di prevenire future instabilità, tanto da essere oggi una tecnica ampiamente accettata nella pratica ingegneristica. Mentre i pali passivi sono generalmente impiegati con lo scopo di ridurre l’entità degli spostamenti del terreno, i criteri di progetto più comunemente utilizzati fanno riferimento alle sole condizioni limite del sistema palo-terreno, non considerando affatto fenomeni di interazione e per questo non risultando adeguati alla valutazione de

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Ozturk, Sevki. "Distribution Of Bending Moments In Laterally Loaded Passive Pile Groups A Model Study." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12610378/index.pdf.

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In this study, bending moment distributions developed in laterally loaded passive pile and passive pile groups in cohesionless soil were investigated in laboratory conditions through model pile experiments. Different from the active pile loading, the lateral load was given directly to the piles using a movable large direct shear box. In these experiments strain gauges fastened to the piles and a computer based data reading system were used. The strain values were measured at five levels on the piles. The behavior of a single pile and a pile group having five piles were investigated through str

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Silva, Sanchez Rosa Elvira. "Contribution au pronostic de durée de vie des systèmes piles à combustible PEMFC." Thesis, Besançon, 2015. http://www.theses.fr/2015BESA2005/document.

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Les travaux de cette thèse visent à apporter des éléments de solutions au problème de la durée de vie des systèmes pile à combustible (FCS – Fuel Cell System) de type à « membrane échangeuse de protons » (PEM – Proton Exchange Membrane) et se décline sur deux champs disciplinaires complémentaires :Une première approche vise à augmenter la durée de vie de celle-ci par la conception et la mise en œuvre d'une architecture de pronostic et de gestion de l'état de santé (PHM – Prognostics & Health Management). Les PEM-FCS, de par leur technologie, sont par essence des systèmes multi-physiques (é

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Xing, Lanchang. "Passive slug mitigation by applying wavy pipes." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/9339.

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This work is to develop a passive slug mitigation technique based on a novel flow conditioner, wavy pipe, through laboratory experiment and numerical simulation. The wavy pipe has been applied to two types of slug flows: severe slugging in pipeline/riser systems and hydrodynamic slug flow in horizontal pipelines. The experiment of severe slugging mitigation was conducted on the 2” and 4” pipeline/riser systems in the Three-Phase Test Facility in PSE (Process Systems Engineering) Laboratory. The flow regimes in the pipeline/riser systems have been classified into four categories, i.e. severe sl

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Erentürk, Murat 1971. "The simulation of passive water hammer in pipes." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38146.

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Ramirez, Rivera Victor Manuel. "Energy management of lossy multi-port to fuel cell-based systems." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112087/document.

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Dans de nombreux réseaux, la régulation efficace du transfert d'énergie entre les sous-systèmes de production, de stockage et d'utilisation demeure un sujet difficile à traiter. Dans cette thèse on a proposent une nouvelle stratégie pour atteindre cet objectif, ainsi que sa mise en œuvre. Le dispositif est appelé routeur d'énergie dynamique (RED), parce que, contrairement à la pratique actuelle, l'asservissement de l'écoulement de puissance se fait sans s'appuyer sur des hypothèses stationnaire. Une hypothèse clé pour le bon fonctionnement du RED est que la dissipation du système est négligeab

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Zhan, Weiguo. "Static pile passive aeration composting of poultry manure slurry." Thesis, University of Ottawa (Canada), 1993. http://hdl.handle.net/10393/6892.

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Static pile passive aeration composting (SPPAC) method is simple and economical. It can be applied to treat and stabilize animal wastes and reduce their adverse impact on the environment such as water, soil and air pollution. A study was carried out to investigate the effectiveness of SPPAC process for poultry manure slurry treatment under high initial MC conditions, using peat and straw as the bulking agents. Four treatments were examined, two of which were mixtures of poultry manure slurry and peat with initial MC of 73 and 80%. The other two treatments consisted of poultry manure slurry and

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Kartha, Satish Chandrashekhar. "Active, Passive and Active/Passive Control Techniques For Reduction of Vibrational Power Flow in Fluid Filled Pipes." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/31156.

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The coupled nature of vibrational energy flow in fluid filled piping systems makes its control and subsequent reduction a difficult problem. This work experimentally explores the potential of different active, passive and active/passive control methodologies for control of vibrational power flow in fluid filled pipes. Circumferential modal decomposition and measurements of vibrational power carried by individual wave types were carried out experimentally. The importance of dominant structural bending waves and the need to eliminate them in order to obtain meaningful experimental results has be

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Marsh, Robert Ashall. "Passive Earth pressures on a pile cap with a dense sand backfill /." Diss., CLICK HERE for online access, 2010. http://contentdm.lib.byu.edu/ETD/image/etd3356.pdf.

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Marsh, Robert Ashall. "Passive Earth Pressures on a Pile Cap with a Dense Sand Backfill." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/1958.

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Pile groups are often used to provide support for structures. Capping a pile group further adds to the system's resistance due to the passive earth pressure from surrounding backfill. While ultimate passive earth pressure under static loading conditions can be readily calculated using several different theories, the effects of cyclic and dynamic loading on the passive earth pressure response are less understood. Data derived from the full-scale testing of a pile cap system with a densely compacted sand backfill under static, cyclic, and dynamic loadings was analyzed with particular focus on so

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Libri sul tema "Passive Piles"

Salomon, Danit. ʻUgot kesherot le-Fesaḥ: Kasher. Ḳorʼim, 2009.

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Stogo, Malcolm. Incredible ice cream: Making it your way with passion! : for professional ice cream artisans and home ice cream junkies. Ice Cream University Press, 2009.

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Long, S. K. Passion in the Pines. WingSpan Publishing, 2016.

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Passion in the Pines. Adventures in Television, Inc., 2022.

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Long, S. K. Passion in the Pines. WingSpan Publishing, 2016.

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Long, S. K. Passion in the Pines. WingSpan Publishing, 2016.

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Capitoli di libri sul tema "Passive Piles"

Guo, Wei Dong. "Passive piles." In Advanced Design of Pile Foundations Under Lateral Loading. CRC Press, 2023. http://dx.doi.org/10.1201/9781003315230-6.

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Hou, Xiaoqiang, Jierui Liu, Xinfei Wang, Zhongren Zhou, and Honglu Jia. "Research on Improvement Calculation Method of Design Thrust of Anti Slide Pile." In Lecture Notes in Civil Engineering. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_17.

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AbstractAt present, based on the transfer coefficient method, most of the anti-slide pile design thrusts are calculated by the overload method and the strength reserve method respectively. Many algorithms only consider the remaining sliding force behind the pile and the safety factor that meets the requirements of the design conditions. Generally, the safety factor is the safety factor of the sliding slope behind the pile after the anti slide pile is reinforced. For the entire landslide, there are two safety factors before and after the pile, which is not the design safety factor target value,

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Maus, Heiko, Harald Holz, Ansgar Bernardi, and Oleg Rostanin. "Leveraging Passive Paper Piles to Active Objects in Personal Knowledge Spaces." In Professional Knowledge Management. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11590019_5.

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Lynch, Nancy J., and Robert S. Cherry. "Design of Passively Aerated Compost Piles: Vertical Air Velocities between the Pipes." In The Science of Composting. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1569-5_93.

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Voigt, Immanuel, Axel Fickert, Hajo Wiemer, and Welf-Guntram Drossel. "Experimental Investigation of Passive Thermal Error Compensation Approach for Machine Tools." In Lecture Notes in Production Engineering. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34486-2_19.

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AbstractConventional approaches to counteract thermal issues in machine tools often require a significant amount of electrical energy input, such as in active cooling systems. An energy-efficient way for reducing thermal errors is to use passive components that redistribute heat introduced by feed drives and other internal heat sources. On the one hand, latent heat storage units can be integrated into the machine to enhance the thermal stability within the phase transition temperature range of the underlying phase change material. By using latent heat storage units, the impact of highly time-v

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Chen, Zhimin, Mingyang Yi, Gengwang Zhang, and Zheng Zhang. "Stability Analysis of Surrounding Rock in Portal Section of Plateau Loose Rock Pile Tunnel Under Different Construction Methods." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5814-2_26.

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AbstractRock pile is a rock block formed by weathering of bedrock, and its stability is lower than that of other rock and soil. Therefore, there are numerous difficulties in the construction of tunnels through rock pile. In this paper, TBM method, three step method and CD method are chosen as the basis of tunnel stability analysis, and the numerical model of surrounding rock excavation stability of tunnel passing through rock pile is established. In this paper, the tunnel excavation is simulated by numerical simulation software, and the stability analysis of tunnel under different construction

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Jiang, Shu, Lianjun Ding, Huankai Li, et al. "Application of Passive Building Technology Based on Embedded Pipes in Walls." In Environmental Science and Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-63901-2_36.

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Rehman, Musabur, and S. M. Abbas. "Seismic Analysis of Pile Foundation Passing Through Liquefiable Soil." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2545-2_45.

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Hermans, William, and Simon Tan. "Investigating Passive Loading of an MSE Wall Bridge Abutment Supported on a Piled Foundation." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-8241-3_24.

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Yau, Jong-Dar, Hsiao-Hui Hung, and Yeong-Bin Yang. "Investigation on soil-viaduct-pile vibrations induced by passing trains." In Wave propagation Moving load – Vibration Reduction. CRC Press, 2021. http://dx.doi.org/10.1201/9781003211372-11.

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Atti di convegni sul tema "Passive Piles"

Bavarian, Behzad, Akinbosede Oluwaseye, Lisa Reiner, and Jessica Meyer. "Migrating Corrosion Inhibitors to Protect Reinforced Concrete Structures." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11011.

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Abstract Most transportation infrastructure is built from steel and concrete. The steel may be in structural sections, such as girders, piles or rails, or embedded in concrete to form reinforced or prestressed concrete. Concrete provides excellent protection for embedded steel because Portland cement is very alkaline, forming a passive, protective layer on the steel surface. Concrete is also permeable, and even good-quality concrete can be penetrated by aggressive chemical ions that may initiate steel corrosion. Migrating corrosion inhibitors (MCIs), a blend of amine carboxylates and amino alc

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Akhoondan, Mersedeh, and Alberto A. Sagüés. "Unexpected Corrosion of Aluminized Steel Pipes in Limestone Backfill." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02650.

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Abstract Aluminized steel Type 2 (AST2), ASTM A929, has a ~50 um thick coating with outer and inner layers of commercially pure Al and Al-Fe intermetallic respectively. AST2 culvert and drainage pipes are required to have long service life (e.g. 75 yr) in natural soil and water environments; premature pipe failures incur heavy repair and replacement costs. Performance has been adequate in many service conditions, but unexpected early corrosion of AST2 pipes has been recently observed in some Florida inland locations. A recent event with loss of the coating and local penetration of the substrat

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Le Manchet, Sandra, Vincent Vignal, Djiby Ba, Olivier Heintz, and Frédéric Herbst. "Role of Alloying Elements and Ageing in the Pitting Corrosion Resistance of Duplex Stainless Steels." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05746.

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Abstract Duplex Stainless Steels (DSS) are highly important engineering materials due to their high corrosion resistance combined with high strength and moderate alloy cost (lower nickel and molybdenum content) compared to standard austenitic grades. They are widely used in various industrial sectors, such as oil & gas (pipes and storage tanks), desalination (evaporators and pumps) and pulp and paper (digesters and bleaching reactors) industries. In this paper, the influence of alloying elements on the passive film properties is first investigated after surface preparation and after ageing

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Garman, Faraj A. "Can Zinc Prevent Corrosion of Pre-Stressed Concrete Cylinder Pipes in High Resistivity Soils?" In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08055.

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Abstract Zinc sacrificial anodes are not generally recommended to be used for the protection of steel in high resistivity soils (&gt;1500 Ω.cm) as the driving potential of the zinc will not be sufficient to provide the required current needed to drive the structure to soil potential to the protection criterion of -850 mV w.r.t. Cu/CuSO4. This criterion guarantees that the structure potential is shifted from the active region to the immunity region of the potential-pH diagram, where the corrosion process is to be completely halted. Generally, more than 300 mV of negative shift is required.

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Zhou, Jian, Xiao-liang Chen, Qing-you Zeng, and Biao Wu. "Model Tests and Numerical Simulations on Pile-Soil Interaction of Passive Piles." In GeoShanghai International Conference 2010. American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41107(380)3.

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Mujah, Donovan, Hemanta Hazarika, Naoto Watanabe, and Fauziah Ahmad. "Multirow Arrangement Of Laterally Loaded Passive Piles In Sand." In 18th Southeast Asian Geotechnical Conference (18SEAGC) & Inaugural AGSSEA Conference (1AGSSEA). Research Publishing Services, 2013. http://dx.doi.org/10.3850/978-981-07-4948-4_294.

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Jiang, J., B. Qi, J. Zhou, and Q. Y. Zeng. "Model Test and PFC 2D Numerical Analysis on Soil Arching Effects Surrounding Passive Laterally Loaded Piles." In GeoShanghai International Conference 2010. American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41101(374)36.

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Carlisle, Derek. "From Passive Storage to Daily Waste Retrieval; Changing the Working Culture at Sellafield’s Pile Fuel Storage Pond." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96207.

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The Pile Fuel Storage Pond (PFSP) was built in 1948/50 to treat materials from the Windscale Piles. Multiple operational regimes over the intervening 60 years have resulted in a complex inventory of spent nuclear fuels, solid and liquid intermediate level wastes. A coordinated programme of work, designed to retrieve and safely dispose of the pond contents, has been implemented to enable the decommissioning of the facility. The long period of passive storage operations which preceded the implementation of the programme meant that the operator was faced with a dual challenge of providing new tec

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Tart, Rupert G. "Pipeline Geohazards Unique to Northern Climates." In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10085.

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Pipelines in northern climates can be impacted by geohazards that are unique to cold regions. Some of these include frost heave, thaw settlement, solifluction, icings, glaciers, ice-rich slopes, and others. This paper will discuss most of these geohazards as they have been monitored, mitigated, and managed along the Trans Alaska Pipeline (TAPS) and other pipelines in Alaska and Russia. Early analyses of frost heave and thaw settlement of piles concluded that frost heave and thaw settlement would be controlled by installing passive heat removal devices (heat pipes). In permafrost areas heat pip

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Yekta, Kaveh, Ray Phung, Benjamin Stang, and Tyler Woitas. "Application of Real-Time Solid Measurement and Return Flow Rate During Coiled Tubing Milling Operations." In SPE/ICoTA Well Intervention Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204451-ms.

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Abstract Among the many applications of Coiled Tubing (CT) services, milling plugs and wellbore sand cleanout are two of the major applications. The transport of solids to the surface, as well as monitoring the return rates, are two sources of information which can have a significant impact on the execution of these jobs. Traditionally the flowback crew communicates this information to the CT control cab upon request. However, by utilizing an acoustic monitor and ultrasonic flowmeter, it can reduce the dependence on flowback operators and provide real-time solid measurement and return flow rat

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Rapporti di organizzazioni sul tema "Passive Piles"

Ardalan, Hamed. Analysis of Landslides and Slopes Stabilized Using One Row of Piles. Deep Foundations Institute, 2013. http://dx.doi.org/10.37308/cpf-2012-land-1.

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The use of piles to stabilize active landslides or to prevent instability in currently stable slopes has become one of the most important innovative slope reinforcement techniques over the last few decades. Piles have been used successfully in many situations in order to stabilize slopes or to improve slope stability, and numerous methods have been developed for the analysis of piled slopes (Ito et al., 1981; Poulos, 1995; Chen and Poulos, 1997; Zeng and Liang, 2002; Won et al., 2005). The piles used in slope stabilization are usually subjected to lateral force through horizontal movements of

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Rahai, Hamid, Assma Begum, Jeremy Bonifacio, and Ryan Moffit. Experimental Investigations of Wind Shear from Passing a Vehicle. Mineta Transportation Institute, 2024. https://doi.org/10.31979/mti.2024.2334.

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Abstract (sommario):

Wind energy can be harnessed for various commercial and transportation-related applications. This study assessed experimentally the potential of capturing wind energy from the passage of vehicles for electric power generation. Both wind tunnel experiments and field tests were performed. The wind tunnel experiments were performed in an open-circuit low-speed wind tunnel at a free-stream mean velocity of 23 m/s. Five PVC pipes placed adjacent to the wind-blowing domain were used to simulate the columns under a freeway overpass. A scaled Ahmad body (simplified car body model) was used as the vehi

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Cruickshank, Garry, and Don Mardle. Wetback Research: Thermodynamic Flow Characteristics of Passive Thermosyphon Energy Transfer from Independent Heat Source to Remote Storage Using Both Direct and Indirect Systems. Unitec ePress, 2022. http://dx.doi.org/10.34074/rsrp.094.

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The method of heating water by means of a water jacket installed in the firebox of a solid-fuel burner, connected by pipes to a hot-water cylinder (HWC), was once commonplace in New Zealand, but has become less so in recent years. These systems, known as wetbacks, are covered by Building Code Clause G12, but considerable confusion has been caused by conflicting rules specified in the two main compliance documents, G12/AS1 and AS/NZS 3500.4 (hot water). In both compliance documents, wetback systems are defined as ‘uncontrolled heat sources’ with specific rules and limitations that stipulate how

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Ricker, Richard E. DTRS56-04-X-0025 Pipeline Steel Corrosion Data from NBS Studies 1922-1940. Pipeline Research Council International, Inc. (PRCI), 2007. http://dx.doi.org/10.55274/r0011874.

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Abstract (sommario):

Between 1911 and 1984, the National Bureau of Standards (NBS) conducted a large number of corrosion studies that included the measurement of corrosion damage to samples exposed to real-world environments. One of these studies was an investigation conducted between 1922 and 1940 into the corrosion of bare steel and wrought iron pipes buried underground at 47 different sites representing different soil types across the United States. At the start of this study, very little was known about the corrosion of ferrous alloys underground. The objectives of this study were to determine (i) if coatings

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Krause, Thomas, Mehrdad Keshefi, Ross Underhill, and Lynann Clapham. PR652-203801-R02 Magnetic Object Model for Large Standoff Magnetometry Measurement. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012151.

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Abstract (sommario):

Ferromagnetic pipeline steel may exhibit magnetization, even in the absence of applied magnetic fields, due to remnant fields or the presence of pipe wall stress. Remnant magnetization may be present from previous or existing exposure to a magnetic field, while pipe wall stress induced magnetization can result from line pressure, environmental stresses due to settling or geohazard conditions, and residual stresses due to nonuniform plastic deformation caused by manufacturing processes, installation or operating conditions. The local stress state of the pipeline may also be altered by corrosion

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Wright, Louise, and Louise Crocker. PR-670-183826-R03 Extended Evaluation of LSM-Magnetostrictive Pipe Models. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012097.

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Abstract (sommario):

Integrity assessment of pipelines is vital to ensure that oil and gas pipes have adequate strength to prevent leaks and ruptures. Regular inspections are conducted to confirm safe operation conditions of pipelines. The industry's principal method for assessing pipelines is in-line inspection (ILI), involving the passing of a device along the inside of a pipe to assess the condition of the pipeline. ILI devices can be fitted with a number of sensors allowing various measurement parameters to be obtained simultaneously. Not all pipelines are suited to ILI for reasons such as small diameter, obst

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Finch, Graeme, and Stuart Harmon. PR-670-183826-R01 Assessment of Science Behind LSM for Pipeline Integrity. Pipeline Research Council International, Inc. (PRCI), 2020. http://dx.doi.org/10.55274/r0011803.

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Abstract (sommario):

Integrity assessment of pipelines is vital to ensure that oil and gas pipes have adequate strength to prevent leaks and ruptures. Regular inspections are conducted to confirm safe operation conditions of pipelines. The industry's principle method for assessing pipelines is in-line inspection (ILI), involving the passing of a device along the inside of a pipe to assess the condition of the pipeline. ILI devices can be fitted with a number of sensors allowing various measurement parameters to be obtained simultaneously. Not all pipelines are suited to ILI for reasons such as small diameter, obst

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Finch, Graeme, and Stuart Harmon. PR-670-183826-R02 Extended Evaluation of LSM - Magnetic Measurements of Corrosion Flaws. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012189.

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Abstract (sommario):

Integrity assessment of pipelines is vital to ensure that oil and gas pipes have adequate strength to prevent leaks and ruptures. Regular inspections are conducted to confirm safe operation conditions of pipelines. The industry's principle method for assessing pipelines is in-line inspection (ILI), involving the passing of a device along the inside of a pipe to assess the condition of the pipeline. ILI devices can be fitted with a number of sensors allowing various measurement parameters to be obtained simultaneously. Not all pipelines are suited to ILI for reasons such as small diameter, obst

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