Ensuring the reliability of the water piping of the Moscow water supply system

Khramenkov, S. V.; Primin, Oleg

doi:10.2166/aqua.2005.0012

Cited by 9 publications

(11 citation statements)

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“…Непринятие оперативных мер повышения эффективности, работоспособности и реновации подземных водопроводов усугубляет ситуацию многочисленными негативными последствиями для населения и окружающей природной среды. Водопроводные сети должны обеспечивать гарантированный физический барьер от загрязнений подаваемой воды и поддерживать в ней требуемые санитарно-гигиенические показатели [8,9].…”

Section: Introductionunclassified

Rapid recovery of old steel piping capacity with energy saving effect by reducing hydraulic resistance values

Orlov,

Zotkin,

Podolyan

et al. 2024

Urban construction and architecture

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The design of repair work for the reconstruction of pressure steel pipelines using Swagelining technology by pulling pre-compressed polymer pipes into old pipelines is considered. Information on regulatory and technical documentation and the field of application of advanced technology, on installation and operation conditions, as well as on the comparative assessment of energy consumption after reconstruction of dilapidated sections of pipelines with polymer pipes with the possibility of minimizing energy consumption during water transportation under conditions of non-thermal operation of the pipeline with changes in hydraulic characteristics is presented.

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Section: Introductionunclassified

Rapid recovery of old steel piping capacity with energy saving effect by reducing hydraulic resistance values

Orlov,

Zotkin,

Podolyan

et al. 2024

Urban construction and architecture

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“…The reliability of engineering networks plays an important role in modern urban economy, ensuring an unhindered supply of drinking water to consumers and the discharge of wastewater to treatment facilities, creating appropriate sanitary and hygienic conditions for normal human life and ensuring the environmental safety of underground space and the atmosphere of cities [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…If we are talking about pressure pipelines, then the goal is to restore not only the strength characteristics of the old pipeline, but also to help reduce energy consumption during the transportation of liquids. This allows the operation of networks to meet the conditions of their long-term operation and optimal power consumption by reducing the roughness of the pipe walls [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Restoration of dilapidated pipeline networks using polymer hoses

Orlov,

Podolian,

Gorelov

2024

BIO Web Conf.

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The paper considers a set of issues affecting the actual problems of operational repair and restoration work on underground pressure water and drainage pipelines made of various materials that have exhausted their standard service life and are subject to numerous defects in the form of cracks, joint divergences, rust growths, fistulas and others. The aim of the work is to consider trenchless technology as a promising method of repairing dilapidated pipelines, which uses the application of polymer hoses to the inner surface of pipeline networks. The general requirements for flexible polymer sleeves and their characteristics, the scope of application of sleeves, as well as requirements for structural materials used in the production of flexible polymer sleeves are considered as the subject of research. The result of the work is an analysis of the sequence and essence of preparatory operations, including in-line diagnostics and a coding system for the results of visual inspection of pipelines. As conclusions, examples of calculating energy savings during water transportation before and after repair and restoration work at an exemplary facility are given, depending on the technical characteristics of the hoses used, as well as their thickness, depending on the depth of the pipeline.

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“…Polymeric materials have not only high strength characteristics, but also allow to achieve the energy saving effect in the transportation of water due to the corresponding hydraulic characteristics of the materials used with low coefficients of hydraulic friction [2]. In addition, polymeric materials are not subject to gas, chemical and biocorrosion, such as steel, cast iron and reinforced concrete, which is another additional advantage over other materials used for the production of pipes [3].…”

Section: Introductionmentioning

confidence: 99%

Calculation of the hydraulic characteristics of the protective coating used in trenchless technologies for the construction and renovation of pipelines to extend their service life

et al. 2017

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Abstract. The lifetime of the pipeline, which undergoes trenchless repair by pulling and then fixing various types of internal protective coatings inside, is determined by the strength characteristics of the two-layer structure "old pipeline + internal protective coating". Hydraulic parameters of internal protective coatings, such as surface roughness and degree of hydrophobicity (water repellency), can play a role in prolonging the life of the repaired pipeline. With a high degree of hydrophobicity of the protective coating, the contact of the transported liquid with the walls of the pipeline during its operation in the non-pressure regime decreases, which leads to a decrease in the negative impact on the walls, in particular, their attrition, interaction with the specific structure of the coating material, which in turn reduces the energy costs when transporting water. Given article deals with a mathematical description of the interaction of the surface structure (with its inherent wetting ability) and the transported liquid in a mini-stream created on an inclined open chute imitating the inner surface of a pressureless pipeline. The theoretical positions and methodology for calculating the degree of hydrophobicity are based on research conducted on the basis of frontal and coaxial (along the flow) digital photo and video. T

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Ensuring the reliability of the water piping of the Moscow water supply system

Cited by 9 publications

References 0 publications

Rapid recovery of old steel piping capacity with energy saving effect by reducing hydraulic resistance values

Rapid recovery of old steel piping capacity with energy saving effect by reducing hydraulic resistance values

Restoration of dilapidated pipeline networks using polymer hoses

Calculation of the hydraulic characteristics of the protective coating used in trenchless technologies for the construction and renovation of pipelines to extend their service life

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