The Unfavourable Impact of Street Traffic on Water Distribution Pipelines

Așchilean, Ioan; Iliescu, Mihai; Ciont, Nicolae; Giurca, Ioan

doi:10.3390/w10081086

Cited by 9 publications

(7 citation statements)

References 13 publications

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“…Also, the pipeline sections subjected to testing were made of high-density polyethylene, HDPE200, being considered a flexible material, which is currently used on a wide scale in the construction of water distribution pipelines. Table 1 shows the mechanical and elastic features of the HDPE material for the outer diameter of the 200 mm pipe [7,17]. The experimental design of the seismic safety system is an assembly: The pipeline section has flexible reinforcement, consisting of two HDPE200 pipe segments joined by a Flexseal SC200 flexible piece ( Figure 1).…”

Section: Experimental Design and Methods Usedmentioning

confidence: 99%

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System for Increasing the Seismic Safety of Pipelines in the Water Supply and Distribution Networks

Ancaş

Așchilean

Profire

et al. 2019

Water

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Seismic activity of small, medium or high intensity has a destructive effect on existing water supply and distribution networks. In the scholar literature, these are included in Class I—Vital Performance Systems, whose operation must be uninterrupted in case of a seismic event. Water networks are also essential for the safe operation of certain critical subsystems in the event of an earthquake (fire-extinguishing systems, etc.), in order to avoid loss of human lives, reduce adverse environmental impacts and limit damage caused by fires. The article proposes a seismic safety system for the water transport pipelines obtained by designing, executing and testing an experimental design, a system that can be used to increase the seismic resilience of the water supply and distribution network pipelines. The experimental data obtained were verified on the basis of the theoretical data available in the literature. The results of the research are particularly useful and can be proposed for use from the stage of designing new networks to providing expertise for existing networks, for establishing the most-stressed areas in which to be installed, and for implementing both execution and at the same time rehabilitation and upgrading.

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Section: Experimental Design and Methods Usedmentioning

confidence: 99%

“…Tubes and pipes for water pipelines in the water supply and distribution systems were made of the following materials: Asbestos (currently forbidden), reinforced concrete, plastics, grey cast iron, steel, etc. In the case of pipes below 400 mm in diameter, the most used material is cast iron and then plastics [7,8].…”

Section: Current State Of Researchmentioning

confidence: 99%

System for Increasing the Seismic Safety of Pipelines in the Water Supply and Distribution Networks

Ancaş

Așchilean

Profire

et al. 2019

Water

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“…Existing international studies on the behaviour of networks in case of dynamic activities refer mainly to the action of heavy traffic over the networks and not to seismic actions [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Behaviour of Seismic Actions on a Flexible Glass-Reinforced Plastic Structure Used in Water Transport Pipes

et al. 2021

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This article presents the experimental results obtained by the testing an experimental model of water distribution which is flexible and above-head mounted on a seismic platform, and their validation in a theoretical manner, but also by the Finite Element Method, using the ANSYS simulation program. This type of system shown by the experimental model is desired to be used in practice not only in seismic areas, but also in the areas of heavy road transport, landslides, etc. thorugh the use thereof in the most stressed points of the network (hearth entry/exit, before/after an elbow, etc.) but also on long routes, at optimal distances. The results achieved are related to glass- reinforced plastic (GRP) pipes with a nominal diameter DN = 250 mm, but conclusions may be drawn starting from these to help future research where the mass of the earth is desired to be taken into account. The present results are comprehensive for buried pipes operated dynamically or seismically at low-medium intensity, as this type of earthquake occurs more and more often in Europe. The experimental tests in this article do not have the characteristics necessary for a high intensity seismic action (above 5° Richter).

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“…The mass of the composite, due to the action of the underlying medium, and the phenomenon of modification of the structure of the material lead to its mechanical degradation [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Environment for Glass-Reinforced Plastic Composite Material Used for Ground Water Transport Pipes

et al. 2021

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Glass-reinforced plastic (GRP) composite materials are mainly used in the construction of pipes due to the wide range of sizes, ease of installation, adaptability to the specific situation in the field and, last but not least, the more competitive price as the nominal diameter increases. Their wide range of applications: drinking and raw water transport, sewerage, industrial waters, desalination plants, mining, etc., has led to the need to tailor the behaviour of the composite material to different fields, with pH values that are not neutral. Based on the experimental data, we aimed to study the change in the structure of the composite material as influenced by the soil characteristics: neutral, basic and acidic. In addition, starting with the pH of the three types of soil—basic, acidic and neutral—which significantly affect GRP composite materials, we calculated the pipe damage index and the Pearson correlation coefficients for axial tension. The results highlight the significant influence of the soil pH on the behaviour over time of the buried GRP pipes. Thus, laying the pipe in acidic soil significantly reduces its life, which should be taken into consideration during the design phase.

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The Unfavourable Impact of Street Traffic on Water Distribution Pipelines

Cited by 9 publications

References 13 publications

System for Increasing the Seismic Safety of Pipelines in the Water Supply and Distribution Networks

System for Increasing the Seismic Safety of Pipelines in the Water Supply and Distribution Networks

Experimental Study on the Behaviour of Seismic Actions on a Flexible Glass-Reinforced Plastic Structure Used in Water Transport Pipes

The Influence of the Environment for Glass-Reinforced Plastic Composite Material Used for Ground Water Transport Pipes

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