Strength weakening effect of high static pre-stressed granite subjected to low-frequency dynamic disturbance under uniaxial compression
文献类型：期刊论文
| 作者 | Wu, Wu-xing; Gong, Feng-qiang; Jiang, Quan |
| 刊名 | TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 32期号:7页码:2353 |
| 关键词 | deep rock high static pre-stress low-frequency dynamic disturbance strength weakening effect uniaxial compression rockburst |
| ISSN号 | 1003-6326 |
| 英文摘要 | This study aimed to elucidate the strength weakening effect of high static pre-stressed rocks subjected to low-frequency disturbances under uniaxial compression. Based on the uniaxial compressive strength (UCS) of granite under static loading, 70%, 80%, and 90% of UCS were selected as the initial high static pre-stress (sigma p), and then the pre-stressed rock specimens were disturbed by sinusoidal stress with amplitudes of 30%, 20%, and 10% of UCS under low-frequency frequencies ( f ) of 1, 2, 5, and 10 Hz, respectively. The results show that the rockburst failure of pre-stressed granite is caused by low-frequency disturbance, and the failure strength is much lower than UCS. When the sigma p or f is constant, the specimen strength gradually decreases as the for sigma p increases. The experimental study illustrates the influence mechanism of the strength weakening effect of high static pre-stress rocks under low-frequency dynamic disturbance, that is, high static pre-stress is the premise and leading factor of rock strength weakening, while low-frequency dynamic disturbance induces rock failure and affects the strength weakening degree. |
| 学科主题 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000848487100010 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34780]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS 2.Southeast University - China; Southeast University - China; |
| 推荐引用方式 GB/T 7714 | Wu, Wu-xing,Gong, Feng-qiang,Jiang, Quan. Strength weakening effect of high static pre-stressed granite subjected to low-frequency dynamic disturbance under uniaxial compression[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2022,32(7):2353. |
| APA | Wu, Wu-xing,Gong, Feng-qiang,&Jiang, Quan.(2022).Strength weakening effect of high static pre-stressed granite subjected to low-frequency dynamic disturbance under uniaxial compression.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,32(7),2353. |
| MLA | Wu, Wu-xing,et al."Strength weakening effect of high static pre-stressed granite subjected to low-frequency dynamic disturbance under uniaxial compression".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 32.7(2022):2353. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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