Study on bearing capacity characteristics of steel structure support in soft rock roadway

Abstract When the soft rock roadway in underground mine is supported by steel frame, the bearing capacity of steel structure is the key to the success of roadway support. Taking the soft rock roadway support in Mengnuo lead‐zinc mine as an example, this paper studies the displacement and stress chan...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ya‐bin Wu, Jian‐hua Hu, Xu‐yang Zhang, Ya‐guang Qin, Zhi‐bo Zhang, Xing‐chang Zhao
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	bearing capacity roadway support soft rock roadway steel structure Technology T Science Q
Acceso en línea:	https://doaj.org/article/5d1d6ed4d153439daaa5ef51fd646157
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5d1d6ed4d153439daaa5ef51fd646157
record_format	dspace
spelling	oai:doaj.org-article:5d1d6ed4d153439daaa5ef51fd6461572021-12-02T05:24:30ZStudy on bearing capacity characteristics of steel structure support in soft rock roadway2050-050510.1002/ese3.996https://doaj.org/article/5d1d6ed4d153439daaa5ef51fd6461572021-12-01T00:00:00Zhttps://doi.org/10.1002/ese3.996https://doaj.org/toc/2050-0505Abstract When the soft rock roadway in underground mine is supported by steel frame, the bearing capacity of steel structure is the key to the success of roadway support. Taking the soft rock roadway support in Mengnuo lead‐zinc mine as an example, this paper studies the displacement and stress change law of U‐shaped steel, I‐shaped steel, rail steel, and surrounding rock, analyzes the bearing capacity characteristics of steel structure support, and conducts field application tests. The results show that: (a) the deformation resistance of U‐shaped steel is the best, the overall deformation of which is 85.0% of that of track steel, followed by that of I‐shaped steel, which is 92% of that of track steel, and the deformation resistance of track steel is the weakest in comparison; (b) the main stress positions of the three kinds of supporting steel structures are the joint of the support shoulder and the waist. When simulating the support of 10 m roadway, the deformation of the middle 4‐6 m roadway is larger than that of the surrounding rock of the head and tail roadway; (c) when the horizontal stress of the deep soft rock roadway is larger, the floor heave of the roadway is larger than that of the shallow roadway only when the side and top support are used; (d) by the analysis of three different forms and stress states of support steel structures, it is found that the shape of support has a great impact on the bearing mechanical characteristics. It is of great value to study the shape of support with more bearing advantages under the same amount of steel.Ya‐bin WuJian‐hua HuXu‐yang ZhangYa‐guang QinZhi‐bo ZhangXing‐chang ZhaoWileyarticlebearing capacityroadway supportsoft rock roadwaysteel structureTechnologyTScienceQENEnergy Science & Engineering, Vol 9, Iss 12, Pp 2423-2433 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	bearing capacity roadway support soft rock roadway steel structure Technology T Science Q
spellingShingle	bearing capacity roadway support soft rock roadway steel structure Technology T Science Q Ya‐bin Wu Jian‐hua Hu Xu‐yang Zhang Ya‐guang Qin Zhi‐bo Zhang Xing‐chang Zhao Study on bearing capacity characteristics of steel structure support in soft rock roadway
description	Abstract When the soft rock roadway in underground mine is supported by steel frame, the bearing capacity of steel structure is the key to the success of roadway support. Taking the soft rock roadway support in Mengnuo lead‐zinc mine as an example, this paper studies the displacement and stress change law of U‐shaped steel, I‐shaped steel, rail steel, and surrounding rock, analyzes the bearing capacity characteristics of steel structure support, and conducts field application tests. The results show that: (a) the deformation resistance of U‐shaped steel is the best, the overall deformation of which is 85.0% of that of track steel, followed by that of I‐shaped steel, which is 92% of that of track steel, and the deformation resistance of track steel is the weakest in comparison; (b) the main stress positions of the three kinds of supporting steel structures are the joint of the support shoulder and the waist. When simulating the support of 10 m roadway, the deformation of the middle 4‐6 m roadway is larger than that of the surrounding rock of the head and tail roadway; (c) when the horizontal stress of the deep soft rock roadway is larger, the floor heave of the roadway is larger than that of the shallow roadway only when the side and top support are used; (d) by the analysis of three different forms and stress states of support steel structures, it is found that the shape of support has a great impact on the bearing mechanical characteristics. It is of great value to study the shape of support with more bearing advantages under the same amount of steel.
format	article
author	Ya‐bin Wu Jian‐hua Hu Xu‐yang Zhang Ya‐guang Qin Zhi‐bo Zhang Xing‐chang Zhao
author_facet	Ya‐bin Wu Jian‐hua Hu Xu‐yang Zhang Ya‐guang Qin Zhi‐bo Zhang Xing‐chang Zhao
author_sort	Ya‐bin Wu
title	Study on bearing capacity characteristics of steel structure support in soft rock roadway
title_short	Study on bearing capacity characteristics of steel structure support in soft rock roadway
title_full	Study on bearing capacity characteristics of steel structure support in soft rock roadway
title_fullStr	Study on bearing capacity characteristics of steel structure support in soft rock roadway
title_full_unstemmed	Study on bearing capacity characteristics of steel structure support in soft rock roadway
title_sort	study on bearing capacity characteristics of steel structure support in soft rock roadway
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/5d1d6ed4d153439daaa5ef51fd646157
work_keys_str_mv	AT yabinwu studyonbearingcapacitycharacteristicsofsteelstructuresupportinsoftrockroadway AT jianhuahu studyonbearingcapacitycharacteristicsofsteelstructuresupportinsoftrockroadway AT xuyangzhang studyonbearingcapacitycharacteristicsofsteelstructuresupportinsoftrockroadway AT yaguangqin studyonbearingcapacitycharacteristicsofsteelstructuresupportinsoftrockroadway AT zhibozhang studyonbearingcapacitycharacteristicsofsteelstructuresupportinsoftrockroadway AT xingchangzhao studyonbearingcapacitycharacteristicsofsteelstructuresupportinsoftrockroadway
_version_	1718400412526051328

Study on bearing capacity characteristics of steel structure support in soft rock roadway

Ejemplares similares