Influence of temperature on the brittle failure of granite in deep tunnels determined from triaxial unloading tests
文献类型：期刊论文
| 作者 | He, Yonghua2; Qin, Chang'an2; Li, Guangming2; Li, Tianbin2; Chen, Guoqing1,2 |
| 刊名 | EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
 |
| 出版日期 | 2018 |
| 卷号 | 22页码:s269-s285 |
| 关键词 | Deep tunnel rockburst high ground temperature thermo-mechanical coupling temperature effect |
| ISSN号 | 1964-8189 |
| DOI | 10.1080/19648189.2017.1369461 |
| 英文摘要 | High ground temperatures lead to the risk of rockburst in hard rock tunnels located in high-stress environments. However, existing rockburst studies have not considered the influence of temperature. Therefore, the laboratory experiments were conducted to measure the brittleness of granite samples under different temperature scenarios, and the tendency of rockbursts were evaluated at different temperatures in this paper. The brittle failure mechanism of granite was explored by using uniaxial and triaxial rock tests under the influence of thermo-mechanical coupling. The results indicated that the post-peak deformation of the rock samples changes from ductile to brittle with an increase in temperature to 100 degrees C. The frequency of shear failure occurred in this test increases with increasing temperature, and the brittle failure of the surrounding rock is enhanced with an increase in temperature. The results indicated that rockbursts occurring in deep granite tunnels at high ground temperatures will be more intense than those occurring at room temperature. The results of this study can be applied to predict the intensity of rockbursts before the tunnels are excavated. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000446212400016 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/5919]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Chen, Guoqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China 2.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Yonghua,Qin, Chang'an,Li, Guangming,et al. Influence of temperature on the brittle failure of granite in deep tunnels determined from triaxial unloading tests[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2018,22:s269-s285. |
| APA | He, Yonghua,Qin, Chang'an,Li, Guangming,Li, Tianbin,&Chen, Guoqing.(2018).Influence of temperature on the brittle failure of granite in deep tunnels determined from triaxial unloading tests.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,22,s269-s285. |
| MLA | He, Yonghua,et al."Influence of temperature on the brittle failure of granite in deep tunnels determined from triaxial unloading tests".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING 22(2018):s269-s285. |
入库方式： OAI收割
来源：武汉植物园
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