Influence of the Angular Position of a New Tunnel on Movement in the Surrounding Existing Tunnel

The development of transportation in large cities requires the construction of new structures subterranean in close proximity to existed structures subterranean. Finding the best appropriate position of the new structure subterranean will help to minimize the magnitude of movement there will be in s...

Full description

Saved in:
Bibliographic Details
Main Author: Nawel Bousbia
Format: Article
Language:English
Published: Sciendo 2024-12-01
Series:Selected Scientific Papers: Journal of Civil Engineering
Subjects:
Online Access:https://doi.org/10.2478/sspjce-2024-0016
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1841556541729144832
author Nawel Bousbia
author_facet Nawel Bousbia
author_sort Nawel Bousbia
collection DOAJ
description The development of transportation in large cities requires the construction of new structures subterranean in close proximity to existed structures subterranean. Finding the best appropriate position of the new structure subterranean will help to minimize the magnitude of movement there will be in soil surrounding the existing one. The purpose of this study is to involve assessing the immediate influences that will result from the new tunnel excavation in close proximity to existed tunnel at different angular positions ß (0° to 180°) relative to existing one, especially destabilization of the soil surrounding, including movements, displacements of soil mass and surface settlement, in addition to internal efforts generated in lining of old tunnel, and to provide a solution by selecting an ideal angular position for the tunnel that will be excavated relative to the existing one. This is a crucial factor when searching for a full solution to the problem of interactions between subterranean structures. This study uses numerical analysis to examine the movements and displacements of soil mass surrounding, the settlement and the internal efforts induced in the old tunnel’s lining impacted by the new tunnel excavation. Several factors, such as the excavation technique, tunnel spacing, liner thickness, etc., had a favorable impact on diminishing the extreme values acquired at the critical angle position (ß =135°). A parametric study was conducted to minimize the maximum values obtained. As a result, these elements could affect planning and security objectives.
format Article
id doaj-art-fcb42e9104db4bebbef9f3ba9cf976f6
institution Kabale University
issn 1338-7278
language English
publishDate 2024-12-01
publisher Sciendo
record_format Article
series Selected Scientific Papers: Journal of Civil Engineering
spelling doaj-art-fcb42e9104db4bebbef9f3ba9cf976f62025-01-07T07:56:59ZengSciendoSelected Scientific Papers: Journal of Civil Engineering1338-72782024-12-0119110.2478/sspjce-2024-0016Influence of the Angular Position of a New Tunnel on Movement in the Surrounding Existing TunnelNawel Bousbia0Faculty of Technology, Department of Civil Engineering, LMGHU Laboratory, University of 20 August 1955, Skikda, AlgeriaThe development of transportation in large cities requires the construction of new structures subterranean in close proximity to existed structures subterranean. Finding the best appropriate position of the new structure subterranean will help to minimize the magnitude of movement there will be in soil surrounding the existing one. The purpose of this study is to involve assessing the immediate influences that will result from the new tunnel excavation in close proximity to existed tunnel at different angular positions ß (0° to 180°) relative to existing one, especially destabilization of the soil surrounding, including movements, displacements of soil mass and surface settlement, in addition to internal efforts generated in lining of old tunnel, and to provide a solution by selecting an ideal angular position for the tunnel that will be excavated relative to the existing one. This is a crucial factor when searching for a full solution to the problem of interactions between subterranean structures. This study uses numerical analysis to examine the movements and displacements of soil mass surrounding, the settlement and the internal efforts induced in the old tunnel’s lining impacted by the new tunnel excavation. Several factors, such as the excavation technique, tunnel spacing, liner thickness, etc., had a favorable impact on diminishing the extreme values acquired at the critical angle position (ß =135°). A parametric study was conducted to minimize the maximum values obtained. As a result, these elements could affect planning and security objectives.https://doi.org/10.2478/sspjce-2024-0016tunneldisplacementsettlementangular positionplaxis
spellingShingle Nawel Bousbia
Influence of the Angular Position of a New Tunnel on Movement in the Surrounding Existing Tunnel
Selected Scientific Papers: Journal of Civil Engineering
tunnel
displacement
settlement
angular position
plaxis
title Influence of the Angular Position of a New Tunnel on Movement in the Surrounding Existing Tunnel
title_full Influence of the Angular Position of a New Tunnel on Movement in the Surrounding Existing Tunnel
title_fullStr Influence of the Angular Position of a New Tunnel on Movement in the Surrounding Existing Tunnel
title_full_unstemmed Influence of the Angular Position of a New Tunnel on Movement in the Surrounding Existing Tunnel
title_short Influence of the Angular Position of a New Tunnel on Movement in the Surrounding Existing Tunnel
title_sort influence of the angular position of a new tunnel on movement in the surrounding existing tunnel
topic tunnel
displacement
settlement
angular position
plaxis
url https://doi.org/10.2478/sspjce-2024-0016
work_keys_str_mv AT nawelbousbia influenceoftheangularpositionofanewtunnelonmovementinthesurroundingexistingtunnel