| 爆破震动影响下软岩巷道变形破坏特征研究 |
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| 引用本文： | 程水金,明建,金爱兵,邓宝超. 爆破震动影响下软岩巷道变形破坏特征研究[J]. 有色金属(矿山部分), 2021, 73(4): 59-66 |
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| 作者姓名： | 程水金 明建 金爱兵 邓宝超 |
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| 作者单位： | ．北京科技大学 金属矿山高效开采与安全教育部重点实验室,．北京科技大学 金属矿山高效开采与安全教育部重点实验室,．北京科技大学 金属矿山高效开采与安全教育部重点实验室,．北京科技大学 金属矿山高效开采与安全教育部重点实验室 |
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| 摘 要： | 针对爆破震动对软岩巷道的稳定性产生影响的问题,对爆破震动条件下巷道变形破坏规律进行了研究。以矿山岩石力学理论为指导,对巷道稳定性受爆破震动影响的力学机理进行了理论分析。采用现场试验和三维数值模拟实验方法进行了实验研究,获得了爆破震动条件下软岩巷道的稳定性特征。研究结果表明当受到爆破震动影响时,巷道围岩内的塑形区将显著增大,从而加剧了巷道的变形破坏。
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| 关 键 词： | 软岩巷道 爆破震动 巷道变形机理 数值模拟 |
| 收稿时间： | 2020-12-12 |
| 修稿时间： | 2021-01-07 |
Study on distortion and failure characteristics of soft rock roadway influenced by the blasting vibration |
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| CHENG Shuijin,MING Jian,JIN Aibing and DENG Baochao. Study on distortion and failure characteristics of soft rock roadway influenced by the blasting vibration[J]. , 2021, 73(4): 59-66 |
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| Authors: | CHENG Shuijin MING Jian JIN Aibing DENG Baochao |
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| Affiliation: | State Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing,State Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing,State Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing,State Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing |
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| Abstract: | In view of the influence of the blasting vibration on the stability of the swelling soft rock roadway,the study on the law of deformation and failure of roadway under blasting vibration conditions was carried out. With the guidance of theories of mine rock mechanics, the mechanics mechanism of the influence of the blasting vibration on the stability of the soft rock roadway was analyzed. By means of the field experiment and the numerical simulation experiment, the stability characteristics of soft rock roadway under blasting vibration were obtained. Experimental results showed that the plastic area of the surrounding rock around roadway will increase significantly under blasting vibration, which will aggravate the deformation and failure of the roadway. |
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| Keywords: | soft rock roadway blasting vibration deformation mechanism of roadway numerical simulation experiment |
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