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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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/6215959 |
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| _version_ | 1832568509534568448 |
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| 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 |
| collection | DOAJ |
| 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 |
| id | doaj-art-881871634cef4fbe9ab20577f67db7d8 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-881871634cef4fbe9ab20577f67db7d82025-02-03T00:58:55ZengWileyGeofluids1468-81232021-01-01202110.1155/2021/6215959Research on Deformation Mechanisms of a High Geostress Soft Rock Roadway and Double-Shell Grouting TechnologyFengnian Wang0Shizhuang Chen1Pan Gao2Zhibiao Guo3Zhigang Tao4State Key Laboratory for Geomechanics and Deep Underground EngineeringResearch Institute of Geotechnical EngineeringState Key Laboratory for Geomechanics and Deep Underground EngineeringState Key Laboratory for Geomechanics and Deep Underground EngineeringState Key Laboratory for Geomechanics and Deep Underground EngineeringIn 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.http://dx.doi.org/10.1155/2021/6215959 |
| spellingShingle | 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 Geofluids |
| title | 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_short | 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 |
| url | http://dx.doi.org/10.1155/2021/6215959 |
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