Impact of Pit Excavation Proximity on Tunnel Integrity

This study meticulously investigates the influential dynamics exerted by pit excavation on structures of adjacent underground tunnels, with a specialized focus on the resultant deformation effects attributed to the varying proximities separating the excavation sites from tunnel constructs. Employing...

Full description

Bibliographic Details
Main Author: Wang Kuan
Format: Article
Language:English
Published: EDP Sciences 2024-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/20/e3sconf_arfee2024_03010.pdf
_version_ 1797299523108732928
author Wang Kuan
author_facet Wang Kuan
author_sort Wang Kuan
collection DOAJ
description This study meticulously investigates the influential dynamics exerted by pit excavation on structures of adjacent underground tunnels, with a specialized focus on the resultant deformation effects attributed to the varying proximities separating the excavation sites from tunnel constructs. Employing rigorous model analyses conducted at designated intervals ranging from 8 meters to 24 meters, the research successfully elucidates a definitive and consistent pattern; it is observed that augmenting the distance between the pit and the tunnel significantly diminishes the extent of tunnel deformation experienced both in horizontal and vertical perspectives. This critical relationship unearthed by the study underlines the paramount importance of adopting meticulously calculated engineering design and the implementation of robust monitoring systems as fundamental measures in mitigating the associated risks prevalent within the expanse of urban underground construction endeavors. Noteworthy within these discoveries is the revelation that horizontal tunnel displacements, in comparison to their vertical counterparts, are markedly more pronounced in their reaction to alterations in the spatial gap that lies between the pit and the tunnel. This distinct sensitivity accentuated in the horizontal displacements signals the imperative for the formulation and application of customized mitigation strategies, specifically honed to address the asymmetrical nature of deformation induced by pit excavation activities in close quarters to tunnel infrastructures. Hence, these insights provide a valuable impetus for stakeholders in the field of construction engineering to incorporate such nuanced understandings into their projects, thereby enhancing the overall stability and safety of subterranean constructions within densely developed urban territories.
first_indexed 2024-03-07T22:50:54Z
format Article
id doaj.art-dc994804079d4ce6b22c93982643b61f
institution Directory Open Access Journal
issn 2267-1242
language English
last_indexed 2024-03-07T22:50:54Z
publishDate 2024-01-01
publisher EDP Sciences
record_format Article
series E3S Web of Conferences
spelling doaj.art-dc994804079d4ce6b22c93982643b61f2024-02-23T10:20:30ZengEDP SciencesE3S Web of Conferences2267-12422024-01-014900301010.1051/e3sconf/202449003010e3sconf_arfee2024_03010Impact of Pit Excavation Proximity on Tunnel IntegrityWang Kuan0Wuhan University of TechnologyThis study meticulously investigates the influential dynamics exerted by pit excavation on structures of adjacent underground tunnels, with a specialized focus on the resultant deformation effects attributed to the varying proximities separating the excavation sites from tunnel constructs. Employing rigorous model analyses conducted at designated intervals ranging from 8 meters to 24 meters, the research successfully elucidates a definitive and consistent pattern; it is observed that augmenting the distance between the pit and the tunnel significantly diminishes the extent of tunnel deformation experienced both in horizontal and vertical perspectives. This critical relationship unearthed by the study underlines the paramount importance of adopting meticulously calculated engineering design and the implementation of robust monitoring systems as fundamental measures in mitigating the associated risks prevalent within the expanse of urban underground construction endeavors. Noteworthy within these discoveries is the revelation that horizontal tunnel displacements, in comparison to their vertical counterparts, are markedly more pronounced in their reaction to alterations in the spatial gap that lies between the pit and the tunnel. This distinct sensitivity accentuated in the horizontal displacements signals the imperative for the formulation and application of customized mitigation strategies, specifically honed to address the asymmetrical nature of deformation induced by pit excavation activities in close quarters to tunnel infrastructures. Hence, these insights provide a valuable impetus for stakeholders in the field of construction engineering to incorporate such nuanced understandings into their projects, thereby enhancing the overall stability and safety of subterranean constructions within densely developed urban territories.https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/20/e3sconf_arfee2024_03010.pdf
spellingShingle Wang Kuan
Impact of Pit Excavation Proximity on Tunnel Integrity
E3S Web of Conferences
title Impact of Pit Excavation Proximity on Tunnel Integrity
title_full Impact of Pit Excavation Proximity on Tunnel Integrity
title_fullStr Impact of Pit Excavation Proximity on Tunnel Integrity
title_full_unstemmed Impact of Pit Excavation Proximity on Tunnel Integrity
title_short Impact of Pit Excavation Proximity on Tunnel Integrity
title_sort impact of pit excavation proximity on tunnel integrity
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/20/e3sconf_arfee2024_03010.pdf
work_keys_str_mv AT wangkuan impactofpitexcavationproximityontunnelintegrity