Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal Stress
According to the characteristics of rock burst of high horizontal stress roadway floor, the rock burst mechanism of roadway floor was studied with the background of south track roadway Xing’an mine. Based on the deflection theory and energy principle of the slab, the mechanical model of the floor of...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6745930 |
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| author | Dongming Guo Xinchao Kang Zhiying Lu Qiyu Chen |
| author_facet | Dongming Guo Xinchao Kang Zhiying Lu Qiyu Chen |
| author_sort | Dongming Guo |
| collection | DOAJ |
| description | According to the characteristics of rock burst of high horizontal stress roadway floor, the rock burst mechanism of roadway floor was studied with the background of south track roadway Xing’an mine. Based on the deflection theory and energy principle of the slab, the mechanical model of the floor of the roadway under high horizontal stress was established, the stress and energy criteria of rock burst occurred in the floor of the roadway were deduced, the prevention and control measures of the floor pressure relief with large diameter borehole and concrete-filled steel tube pile support were put forward, and the key parameters were determined. By establishing a numerical model, the evolution law of plastic zone, horizontal stress, and elastic strain energy density of roadway floor with or without support is contrastively analyzed. The results show that the effective means to prevent and control the floor rock burst is to cut off the stress transfer path by weakening the hard floor to reduce floor energy accumulation so as to reduce the floor rock burst risk. Based on the above research, field tests were carried out, and the microseismic monitoring results showed that the floor pressure relief of large diameter boreholes and concrete-filled steel tube pile support effectively relieved the floor rock burst and guaranteed the safety and efficiency of roadway excavation. This technology can provide a reference for the prevention and control of floor rock burst of similar roadways. |
| format | Article |
| id | doaj-art-79a6c36e0b9046af87283ae8b50e7bdb |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-79a6c36e0b9046af87283ae8b50e7bdb2025-02-03T01:04:35ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/67459306745930Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal StressDongming Guo0Xinchao Kang1Zhiying Lu2Qiyu Chen3School of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaJiangsu Haosen Architectural Design Co., Ltd, Changzhou 213000, Jiangsu, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaAccording to the characteristics of rock burst of high horizontal stress roadway floor, the rock burst mechanism of roadway floor was studied with the background of south track roadway Xing’an mine. Based on the deflection theory and energy principle of the slab, the mechanical model of the floor of the roadway under high horizontal stress was established, the stress and energy criteria of rock burst occurred in the floor of the roadway were deduced, the prevention and control measures of the floor pressure relief with large diameter borehole and concrete-filled steel tube pile support were put forward, and the key parameters were determined. By establishing a numerical model, the evolution law of plastic zone, horizontal stress, and elastic strain energy density of roadway floor with or without support is contrastively analyzed. The results show that the effective means to prevent and control the floor rock burst is to cut off the stress transfer path by weakening the hard floor to reduce floor energy accumulation so as to reduce the floor rock burst risk. Based on the above research, field tests were carried out, and the microseismic monitoring results showed that the floor pressure relief of large diameter boreholes and concrete-filled steel tube pile support effectively relieved the floor rock burst and guaranteed the safety and efficiency of roadway excavation. This technology can provide a reference for the prevention and control of floor rock burst of similar roadways.http://dx.doi.org/10.1155/2021/6745930 |
| spellingShingle | Dongming Guo Xinchao Kang Zhiying Lu Qiyu Chen Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal Stress Shock and Vibration |
| title | Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal Stress |
| title_full | Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal Stress |
| title_fullStr | Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal Stress |
| title_full_unstemmed | Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal Stress |
| title_short | Mechanism and Control of Roadway Floor Rock Burst Induced by High Horizontal Stress |
| title_sort | mechanism and control of roadway floor rock burst induced by high horizontal stress |
| url | http://dx.doi.org/10.1155/2021/6745930 |
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