Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology

In this study, the deformation characteristics and mechanical properties of coal and rock mass in the S2N5 working face of the Xiaokang coal mine are analyzed to address the problem of large deformation of soft rocks with high in situ stress surrounding roadways. Through a newly developed grouting p...

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Autores principales:	Fengnian Wang, Shizhuang Chen, Pan Gao, Zhibiao Guo, Zhigang Tao
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/881871634cef4fbe9ab20577f67db7d8
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spelling	oai:doaj.org-article:881871634cef4fbe9ab20577f67db7d82021-11-08T02:35:58ZResearch on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology1468-812310.1155/2021/6215959https://doaj.org/article/881871634cef4fbe9ab20577f67db7d82021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/6215959https://doaj.org/toc/1468-8123In this study, the deformation characteristics and mechanical properties of coal and rock mass in the S2N5 working face of the Xiaokang coal mine are analyzed to address the problem of large deformation of soft rocks with high in situ stress surrounding roadways. Through a newly developed grouting pipe, a double-shell grouting technology, consisting of low-pressure grouting and high-pressure split grouting, is proposed for the Xiaokang coal mine. In addition, the effect of grouting is evaluated by borehole peeping and deformation monitoring. The results show that the double-shell grouting technology can effectively improve the overall mechanical properties of the surrounding coal and rock mass, preventing the large deformation and failure of the roadway. This technology can be useful when analyzing and preventing large deformation of soft rock roadways.Fengnian WangShizhuang ChenPan GaoZhibiao GuoZhigang TaoHindawi-WileyarticleGeologyQE1-996.5ENGeofluids, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Geology QE1-996.5
spellingShingle	Geology QE1-996.5 Fengnian Wang Shizhuang Chen Pan Gao Zhibiao Guo Zhigang Tao Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology
description	In this study, the deformation characteristics and mechanical properties of coal and rock mass in the S2N5 working face of the Xiaokang coal mine are analyzed to address the problem of large deformation of soft rocks with high in situ stress surrounding roadways. Through a newly developed grouting pipe, a double-shell grouting technology, consisting of low-pressure grouting and high-pressure split grouting, is proposed for the Xiaokang coal mine. In addition, the effect of grouting is evaluated by borehole peeping and deformation monitoring. The results show that the double-shell grouting technology can effectively improve the overall mechanical properties of the surrounding coal and rock mass, preventing the large deformation and failure of the roadway. This technology can be useful when analyzing and preventing large deformation of soft rock roadways.
format	article
author	Fengnian Wang Shizhuang Chen Pan Gao Zhibiao Guo Zhigang Tao
author_facet	Fengnian Wang Shizhuang Chen Pan Gao Zhibiao Guo Zhigang Tao
author_sort	Fengnian Wang
title	Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology
title_short	Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology
title_full	Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology
title_fullStr	Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology
title_full_unstemmed	Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology
title_sort	research on deformation mechanisms of a high geostress soft rock roadway and double-shell grouting technology
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/881871634cef4fbe9ab20577f67db7d8
work_keys_str_mv	AT fengnianwang researchondeformationmechanismsofahighgeostresssoftrockroadwayanddoubleshellgroutingtechnology AT shizhuangchen researchondeformationmechanismsofahighgeostresssoftrockroadwayanddoubleshellgroutingtechnology AT pangao researchondeformationmechanismsofahighgeostresssoftrockroadwayanddoubleshellgroutingtechnology AT zhibiaoguo researchondeformationmechanismsofahighgeostresssoftrockroadwayanddoubleshellgroutingtechnology AT zhigangtao researchondeformationmechanismsofahighgeostresssoftrockroadwayanddoubleshellgroutingtechnology
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Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting Technology

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