Numerical Investigation on Time-Dependent Deformation in Roadway
The roadway deformation normally relates to time especially for underground coal roadway. The strength of soft coal is low, and therefore the deformation increases gradually under constant stress with time, which is called rheology deformation. In this study, based on a field case, the rock mass pro...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/4280139 |
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| author | Yuantian Sun Guichen Li Junfei Zhang Bicheng Yao Deyu Qian Jiandong Huang |
| author_facet | Yuantian Sun Guichen Li Junfei Zhang Bicheng Yao Deyu Qian Jiandong Huang |
| author_sort | Yuantian Sun |
| collection | DOAJ |
| description | The roadway deformation normally relates to time especially for underground coal roadway. The strength of soft coal is low, and therefore the deformation increases gradually under constant stress with time, which is called rheology deformation. In this study, based on a field case, the rock mass properties and deformation data of the roadway were obtained according to the field test. A 3D numerical model was then established, and the rheological deformation including horizontal and vertical deformation of the coal roadway was systematically analyzed. The results showed that the rheological deformation of horizontal sidewall accounts for almost 30% of the whole deformation, and the stable time for such roadway is around 60 days after excavation. The tendency of the roof deformation is similar to the sidewalls, and however, the floor deformation is different. Then the related suggestions for maintaining the stability of such roadway were proposed, which is useful in-field application. |
| format | Article |
| id | doaj-art-d751cc3684534d798f078265e52d5029 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-d751cc3684534d798f078265e52d50292025-02-03T01:05:07ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/42801394280139Numerical Investigation on Time-Dependent Deformation in RoadwayYuantian Sun0Guichen Li1Junfei Zhang2Bicheng Yao3Deyu Qian4Jiandong Huang5Key Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaKey Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaSchool of Civil and Transportation Engineering, Hebei University of Technology, 5340 Xiping Road, Beichen District, Tianjin 300401, ChinaKey Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaKey Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaKey Laboratory of Deep Coal Resource Mining, Ministry of Education of China, School of Mines, China University of Mining and Technology, Xuzhou 221116, ChinaThe roadway deformation normally relates to time especially for underground coal roadway. The strength of soft coal is low, and therefore the deformation increases gradually under constant stress with time, which is called rheology deformation. In this study, based on a field case, the rock mass properties and deformation data of the roadway were obtained according to the field test. A 3D numerical model was then established, and the rheological deformation including horizontal and vertical deformation of the coal roadway was systematically analyzed. The results showed that the rheological deformation of horizontal sidewall accounts for almost 30% of the whole deformation, and the stable time for such roadway is around 60 days after excavation. The tendency of the roof deformation is similar to the sidewalls, and however, the floor deformation is different. Then the related suggestions for maintaining the stability of such roadway were proposed, which is useful in-field application.http://dx.doi.org/10.1155/2021/4280139 |
| spellingShingle | Yuantian Sun Guichen Li Junfei Zhang Bicheng Yao Deyu Qian Jiandong Huang Numerical Investigation on Time-Dependent Deformation in Roadway Advances in Civil Engineering |
| title | Numerical Investigation on Time-Dependent Deformation in Roadway |
| title_full | Numerical Investigation on Time-Dependent Deformation in Roadway |
| title_fullStr | Numerical Investigation on Time-Dependent Deformation in Roadway |
| title_full_unstemmed | Numerical Investigation on Time-Dependent Deformation in Roadway |
| title_short | Numerical Investigation on Time-Dependent Deformation in Roadway |
| title_sort | numerical investigation on time dependent deformation in roadway |
| url | http://dx.doi.org/10.1155/2021/4280139 |
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