Permanent tunnel lining monitoring system for the purpose of further design optimization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00367880" target="_blank" >RIV/68407700:21110/23:00367880 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1201/9781003348443-294" target="_blank" >https://doi.org/10.1201/9781003348443-294</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1201/9781003348443-294" target="_blank" >10.1201/9781003348443-294</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Permanent tunnel lining monitoring system for the purpose of further design optimization

Popis výsledku v původním jazyce

Design background of temperature loading of tunnel linings given by the European and national standards in Czech Republic might be unnecessarily strict, while the considered temperature changes across the thickness of the tunnel lining should be notably lower than values recommended by standards. Due to these reasons, multiple tunnel structures actually under construction were selected for installation of newly designed specific monitoring system into the linings of these tunnels. Monitoring system is installed into three tunnel structures, its design is adjusted to ensure its similarity in all the structures. Monitored spots of the measurement system are situated in central and boundary segments. The system measures temperature profiles and strain in crown and wall of tunnel segments. Measurement should provide sufficient basis for statistical evaluation of temperature changes reached in tunnel linings during the extended period of time. Strain monitoring of lining provides complex information about overall deformation of structure caused by force and non-force effects of loads. Result of tunnel lining monitoring will be an adjusted design temperature profile for purpose of tunnel lining evaluation. Consideration of proper and realistic temperature gradient in design of tunnel linings should optimize thickness and reinforcement of lining, therefore the reducing final costs of newly constructed tunnels.

Název v anglickém jazyce

Permanent tunnel lining monitoring system for the purpose of further design optimization

Popis výsledku anglicky

Design background of temperature loading of tunnel linings given by the European and national standards in Czech Republic might be unnecessarily strict, while the considered temperature changes across the thickness of the tunnel lining should be notably lower than values recommended by standards. Due to these reasons, multiple tunnel structures actually under construction were selected for installation of newly designed specific monitoring system into the linings of these tunnels. Monitoring system is installed into three tunnel structures, its design is adjusted to ensure its similarity in all the structures. Monitored spots of the measurement system are situated in central and boundary segments. The system measures temperature profiles and strain in crown and wall of tunnel segments. Measurement should provide sufficient basis for statistical evaluation of temperature changes reached in tunnel linings during the extended period of time. Strain monitoring of lining provides complex information about overall deformation of structure caused by force and non-force effects of loads. Result of tunnel lining monitoring will be an adjusted design temperature profile for purpose of tunnel lining evaluation. Consideration of proper and realistic temperature gradient in design of tunnel linings should optimize thickness and reinforcement of lining, therefore the reducing final costs of newly constructed tunnels.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/TH04010038" target="_blank" >TH04010038: Systém pro trvalé monitorování průběhu degradačních procesů v konstrukcích inženýrských staveb</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems

ISBN

978-1-003-34844-3

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

1792-1796

Název nakladatele

CRC Press/Balkema

Místo vydání

Leiden

Místo konání akce

Cape Town

Datum konání akce

5. 9. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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