MMODELLING OF TUNNELLING INDUCED SETTLEMENT USING 2D FINITE ELEMENT METHOD

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

MMODELLING OF TUNNELLING INDUCED SETTLEMENT USING 2D FINITE ELEMENT METHOD

Popis výsledku v původním jazyce

When shallow tunnels are driven, deformations of ground mass usually reach up to the ground surface. A reliable prediction of surface settlement during the tunnel excavations remains to be a fundamental issue. The simplest approach is to use empirical or analytical methods. Many of them were developed for mining engineering purposes, but today mathematical modelling (for instance FEM) is commonly used. Because the deformation during tunnel excavation is a typical 3D problem, the way of introducing the behaviour of the rock mass in the missing third dimension to the 2D model has an important role for the reliability of the results. The aim of this paper is to present some methods for the 2D FEM calculation of soil settlement in tunnelling. These are core support method, lining reduction method, stress reduction method (beta method), contraction method, gap method and 2D3D method.

Název v anglickém jazyce

MMODELLING OF TUNNELLING INDUCED SETTLEMENT USING 2D FINITE ELEMENT METHOD

Popis výsledku anglicky

When shallow tunnels are driven, deformations of ground mass usually reach up to the ground surface. A reliable prediction of surface settlement during the tunnel excavations remains to be a fundamental issue. The simplest approach is to use empirical or analytical methods. Many of them were developed for mining engineering purposes, but today mathematical modelling (for instance FEM) is commonly used. Because the deformation during tunnel excavation is a typical 3D problem, the way of introducing the behaviour of the rock mass in the missing third dimension to the 2D model has an important role for the reliability of the results. The aim of this paper is to present some methods for the 2D FEM calculation of soil settlement in tunnelling. These are core support method, lining reduction method, stress reduction method (beta method), contraction method, gap method and 2D3D method.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Podzemní stavby Praha 2023 / Underground Construction Prague 2023

ISBN

978-80-906452-5-7

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

Czech Tunnelling Association ITA-AITES

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

29. 5. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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