Numerical Study on Deformation and Failure Characteristics of Rectangular Roadway
In the practical processes of coal mines and tunnel, rectangular roadways are widely used in the underground environment. However, the stress distribution law of the rock mass around the rectangular roadways is relatively complicated that is influenced by different parameters, such as the in situ st...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-01-01
|
| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2023/3792978 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849307824967909376 |
|---|---|
| author | Xuejia Li Baoyang Wu Yanzhao Zhu Junting Guo Zhaolong Li |
| author_facet | Xuejia Li Baoyang Wu Yanzhao Zhu Junting Guo Zhaolong Li |
| author_sort | Xuejia Li |
| collection | DOAJ |
| description | In the practical processes of coal mines and tunnel, rectangular roadways are widely used in the underground environment. However, the stress distribution law of the rock mass around the rectangular roadways is relatively complicated that is influenced by different parameters, such as the in situ stress, geological structure, and properties of the surrounding rock mass. It is extremely significant to conduct systematic and in-depth research regarding the stress distribution and deformation failure mechanism of the rock mass around the rectangular roadways. Based on theoretical analysis, the stress distribution law of the surrounding rock of rectangular roadway under different rock mass strength grades is studied directly through rectangular roadway in this paper. This further reveals the distribution law of secondary stress field after excavation of rectangular roadway. A coal mine intends to excavate a roadway in rock mass, and then, the rectangular roadway is simulated by FLAC3D software. Then, the strain distribution and failure types of roadway surrounding rock under different rock mass properties are obtained. The results show that the failure of rectangular roadway is mainly shear failure and tensile failure. The roof and floor of roadway are mainly tensile failure, and the side of roadway is mainly shear failure. Moreover, the stress shifting and distribution of the rock mass around rectangular roadways is a complicated dynamic variation process. The damage degree of the floor and roof of the rectangular roadway is greater than that of the two sides of the roadway. Its variation is mainly related to the strength of surrounding rock mass. |
| format | Article |
| id | doaj-art-2a00b5b5ceb24469928bf53466e3b3c7 |
| institution | Kabale University |
| issn | 1468-8123 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-2a00b5b5ceb24469928bf53466e3b3c72025-08-20T03:54:37ZengWileyGeofluids1468-81232023-01-01202310.1155/2023/3792978Numerical Study on Deformation and Failure Characteristics of Rectangular RoadwayXuejia Li0Baoyang Wu1Yanzhao Zhu2Junting Guo3Zhaolong Li4State Key Laboratory of Water Resource Protection and Utilization in Coal MiningState Key Laboratory of Water Resource Protection and Utilization in Coal MiningSchool of Energy and Mining EngineeringState Key Laboratory of Water Resource Protection and Utilization in Coal MiningSchool of Energy and Mining EngineeringIn the practical processes of coal mines and tunnel, rectangular roadways are widely used in the underground environment. However, the stress distribution law of the rock mass around the rectangular roadways is relatively complicated that is influenced by different parameters, such as the in situ stress, geological structure, and properties of the surrounding rock mass. It is extremely significant to conduct systematic and in-depth research regarding the stress distribution and deformation failure mechanism of the rock mass around the rectangular roadways. Based on theoretical analysis, the stress distribution law of the surrounding rock of rectangular roadway under different rock mass strength grades is studied directly through rectangular roadway in this paper. This further reveals the distribution law of secondary stress field after excavation of rectangular roadway. A coal mine intends to excavate a roadway in rock mass, and then, the rectangular roadway is simulated by FLAC3D software. Then, the strain distribution and failure types of roadway surrounding rock under different rock mass properties are obtained. The results show that the failure of rectangular roadway is mainly shear failure and tensile failure. The roof and floor of roadway are mainly tensile failure, and the side of roadway is mainly shear failure. Moreover, the stress shifting and distribution of the rock mass around rectangular roadways is a complicated dynamic variation process. The damage degree of the floor and roof of the rectangular roadway is greater than that of the two sides of the roadway. Its variation is mainly related to the strength of surrounding rock mass.http://dx.doi.org/10.1155/2023/3792978 |
| spellingShingle | Xuejia Li Baoyang Wu Yanzhao Zhu Junting Guo Zhaolong Li Numerical Study on Deformation and Failure Characteristics of Rectangular Roadway Geofluids |
| title | Numerical Study on Deformation and Failure Characteristics of Rectangular Roadway |
| title_full | Numerical Study on Deformation and Failure Characteristics of Rectangular Roadway |
| title_fullStr | Numerical Study on Deformation and Failure Characteristics of Rectangular Roadway |
| title_full_unstemmed | Numerical Study on Deformation and Failure Characteristics of Rectangular Roadway |
| title_short | Numerical Study on Deformation and Failure Characteristics of Rectangular Roadway |
| title_sort | numerical study on deformation and failure characteristics of rectangular roadway |
| url | http://dx.doi.org/10.1155/2023/3792978 |
| work_keys_str_mv | AT xuejiali numericalstudyondeformationandfailurecharacteristicsofrectangularroadway AT baoyangwu numericalstudyondeformationandfailurecharacteristicsofrectangularroadway AT yanzhaozhu numericalstudyondeformationandfailurecharacteristicsofrectangularroadway AT juntingguo numericalstudyondeformationandfailurecharacteristicsofrectangularroadway AT zhaolongli numericalstudyondeformationandfailurecharacteristicsofrectangularroadway |