Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams

Based on the difficult problem of controlling the surrounding rock of roadways in extra thick coal seams, the no coal pillar mining technology by pipe ventilation in coal roadway adjacent to the goaf for the top coal caving working face of extra thick coal seams was proposed. The interaction mechani...

Descripción completa

Detalles Bibliográficos
Autores: He, Fulian, Wang, Deqiu, Chen, Dongdong, Xu, Chenyu, Bascompta Massanes, Marc|||0000-0003-1519-6133
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/443363
Acceso en línea:https://hdl.handle.net/2117/443363
https://dx.doi.org/10.1016/j.rineng.2025.107065
Access Level:acceso abierto
Palabra clave:Extra-thick coal seam
Coal roadway adjacent to the goaf
Irregular pipes
Pipe-Surrounding rock interaction
Mechanical behavior
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines
id ES_bcfe9fcef28b5a1c4f0f0a98c09ffbbb
oai_identifier_str oai:upcommons.upc.edu:2117/443363
network_acronym_str ES
network_name_str España
repository_id_str
spelling Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seamsHe, FulianWang, DeqiuChen, DongdongXu, ChenyuBascompta Massanes, Marc|||0000-0003-1519-6133Extra-thick coal seamCoal roadway adjacent to the goafIrregular pipesPipe-Surrounding rock interactionMechanical behaviorÀrees temàtiques de la UPC::Enginyeria civil::Enginyeria de minesBased on the difficult problem of controlling the surrounding rock of roadways in extra thick coal seams, the no coal pillar mining technology by pipe ventilation in coal roadway adjacent to the goaf for the top coal caving working face of extra thick coal seams was proposed. The interaction mechanism between ventilation pipes and differential surrounding rock, and the bearing performance of various irregular pipes under different load forms were studied using methods such as on-site investigation, numerical simulation, physical similarity simulation experiments, and on-site practice. The research conclusion was as follows: 1 The contact form between trapezoidal pipe and surrounding rock was mainly the near contact, and the contact form of curved pipes was mainly the sticking contact, with more uniform contact stress. 2. The equivalent stress, plastic strain and deformation of the top and coal wall side curved pipe were minimized under equal strength loading condition, which was the most ideal pipe shape. 3. Strengthening the pressure on the coal wall side of the pipe under non-uniform strength form was beneficial for maintaining pipe stability. 4. Physical similarity simulation experiment have shown the top and coal wall side curved pipe exhibited bending deformation towards the inside of the pipe to adapt to rock deformation, which could provide strong control over the surrounding rock. On site tests have shown that the pipeline can meet the ventilation requirements of the working face without significant deformation.This work was supported by the National Natural Science Foundation of China (No. 52374149), and the China Scholarship Council (202306430072).Peer Reviewed8 - Treball Decent i Creixement EconòmicElsevier20252025-09-0120252025-10-08journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/443363https://dx.doi.org/10.1016/j.rineng.2025.107065reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4433632026-05-27T15:37:01Z
dc.title.none.fl_str_mv Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams
title Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams
spellingShingle Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams
He, Fulian
Extra-thick coal seam
Coal roadway adjacent to the goaf
Irregular pipes
Pipe-Surrounding rock interaction
Mechanical behavior
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines
title_short Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams
title_full Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams
title_fullStr Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams
title_full_unstemmed Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams
title_sort Study on the bearing mechanism of irregular pipes under the differential surrounding rock action of coal roadway adjacent to the goaf in extra-thick coal seams
dc.creator.none.fl_str_mv He, Fulian
Wang, Deqiu
Chen, Dongdong
Xu, Chenyu
Bascompta Massanes, Marc|||0000-0003-1519-6133
author He, Fulian
author_facet He, Fulian
Wang, Deqiu
Chen, Dongdong
Xu, Chenyu
Bascompta Massanes, Marc|||0000-0003-1519-6133
author_role author
author2 Wang, Deqiu
Chen, Dongdong
Xu, Chenyu
Bascompta Massanes, Marc|||0000-0003-1519-6133
author2_role author
author
author
author
dc.subject.none.fl_str_mv Extra-thick coal seam
Coal roadway adjacent to the goaf
Irregular pipes
Pipe-Surrounding rock interaction
Mechanical behavior
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines
topic Extra-thick coal seam
Coal roadway adjacent to the goaf
Irregular pipes
Pipe-Surrounding rock interaction
Mechanical behavior
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines
description Based on the difficult problem of controlling the surrounding rock of roadways in extra thick coal seams, the no coal pillar mining technology by pipe ventilation in coal roadway adjacent to the goaf for the top coal caving working face of extra thick coal seams was proposed. The interaction mechanism between ventilation pipes and differential surrounding rock, and the bearing performance of various irregular pipes under different load forms were studied using methods such as on-site investigation, numerical simulation, physical similarity simulation experiments, and on-site practice. The research conclusion was as follows: 1 The contact form between trapezoidal pipe and surrounding rock was mainly the near contact, and the contact form of curved pipes was mainly the sticking contact, with more uniform contact stress. 2. The equivalent stress, plastic strain and deformation of the top and coal wall side curved pipe were minimized under equal strength loading condition, which was the most ideal pipe shape. 3. Strengthening the pressure on the coal wall side of the pipe under non-uniform strength form was beneficial for maintaining pipe stability. 4. Physical similarity simulation experiment have shown the top and coal wall side curved pipe exhibited bending deformation towards the inside of the pipe to adapt to rock deformation, which could provide strong control over the surrounding rock. On site tests have shown that the pipeline can meet the ventilation requirements of the working face without significant deformation.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-09-01
2025
2025-10-08
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/443363
https://dx.doi.org/10.1016/j.rineng.2025.107065
url https://hdl.handle.net/2117/443363
https://dx.doi.org/10.1016/j.rineng.2025.107065
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869418162321096704
score 15.812429

Similares en LA Referencia