Stabilization of hydraulic characteristics for non-pressure pipelines

The article presents the aspects concerning the preservation of the transporting capacity of the waste water flow in the gravity pipeline during its trenchless renovation by polymer pipes. It is shown that the priority measure to preserve the required degree of self-cleaning of the restored pipeline...

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Main Authors: Orlov Vladimir, Zotkin Sergey
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/23/e3sconf_form2018_05003.pdf
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author Orlov Vladimir
Zotkin Sergey
author_facet Orlov Vladimir
Zotkin Sergey
author_sort Orlov Vladimir
collection DOAJ
description The article presents the aspects concerning the preservation of the transporting capacity of the waste water flow in the gravity pipeline during its trenchless renovation by polymer pipes. It is shown that the priority measure to preserve the required degree of self-cleaning of the restored pipeline section, as well as these ones adjacent to it, are the values of the water flow rate and filling in the pipe, which allows to provide the necessary transportation capacity of the entire pipeline system. A formula for determining the length of the rate destabilization zone is proposed and the calculation results using an automated program are given. The program algorithm includes the functions to determine the hydraulic friction coefficients of the pipeline material depending on various parameters, as well as the diameters and lengths of all sections. The essence of the calculations using an automated complex is described and the comparison of the calculation results under different conditions is made. There are given practical recommendations for the potential achievement of the hydraulic balance in the pipeline system and the creation of conditions under which the destabilization zone on the site after the repair becomes minimal.
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spelling doaj.art-723cb17f3408464b92df0ac1657d52472022-12-21T22:49:19ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01970500310.1051/e3sconf/20199705003e3sconf_form2018_05003Stabilization of hydraulic characteristics for non-pressure pipelinesOrlov VladimirZotkin SergeyThe article presents the aspects concerning the preservation of the transporting capacity of the waste water flow in the gravity pipeline during its trenchless renovation by polymer pipes. It is shown that the priority measure to preserve the required degree of self-cleaning of the restored pipeline section, as well as these ones adjacent to it, are the values of the water flow rate and filling in the pipe, which allows to provide the necessary transportation capacity of the entire pipeline system. A formula for determining the length of the rate destabilization zone is proposed and the calculation results using an automated program are given. The program algorithm includes the functions to determine the hydraulic friction coefficients of the pipeline material depending on various parameters, as well as the diameters and lengths of all sections. The essence of the calculations using an automated complex is described and the comparison of the calculation results under different conditions is made. There are given practical recommendations for the potential achievement of the hydraulic balance in the pipeline system and the creation of conditions under which the destabilization zone on the site after the repair becomes minimal.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/23/e3sconf_form2018_05003.pdf
spellingShingle Orlov Vladimir
Zotkin Sergey
Stabilization of hydraulic characteristics for non-pressure pipelines
E3S Web of Conferences
title Stabilization of hydraulic characteristics for non-pressure pipelines
title_full Stabilization of hydraulic characteristics for non-pressure pipelines
title_fullStr Stabilization of hydraulic characteristics for non-pressure pipelines
title_full_unstemmed Stabilization of hydraulic characteristics for non-pressure pipelines
title_short Stabilization of hydraulic characteristics for non-pressure pipelines
title_sort stabilization of hydraulic characteristics for non pressure pipelines
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/23/e3sconf_form2018_05003.pdf
work_keys_str_mv AT orlovvladimir stabilizationofhydrauliccharacteristicsfornonpressurepipelines
AT zotkinsergey stabilizationofhydrauliccharacteristicsfornonpressurepipelines