Study on Dynamic Characteristics of Diorite Under Dry-Wet Cycle
文献类型：期刊论文
| 作者 | Xu, Jiangbo1; Sun, Haohui1; Cui, Yilun1,3; Fei, Dongyang1; Lan, Hengxing2 ; Yan, Changgen1; Bao, Han1; Wu, Faquan4
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| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
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| 出版日期 | 2021-08-11 |
| 页码 | 11 |
| ISSN号 | 0723-2632 |
| 关键词 | Dry-wet cycle Hopkinson pressure bar test Dynamic uniaxial compressive strength Dynamic elastic modulus Stress growth rate Energy analysis |
| DOI | 10.1007/s00603-021-02593-x |
| 通讯作者 | Xu, Jiangbo(xujiangbo@yeah.net) |
| 英文摘要 | During the construction of tunnels in the central and western regions of China, diorite is frequently affected by vibration, blasting and water which will lead to the questions of the quality and operational safety of project. However, there are few studies on the dynamic characteristics of diorite under the action of dry-wet cycles. Therefore, this paper selected the gray-green altered diorite from Ning shan County, Shaanxi Province, China, mainly composed of plagioclase, and used the Slit Hopkinson pressure bar (SHPB) to study the effect of dry-wet cycle on the dynamic characteristics of Diorite. The test results show that the strength decay rate of the peak strength of diorite is the maximum under 1-3 dry-wet cycles, then decreases gradually. The dynamic elastic modulus of diorite dropped by 35.02% after three dry-wet cycles, accounting for 98.45% of the total attenuation. Compared the test result of three dry-wet cycles, the decrease volumes of the stress growth rate of diorite are the largest after six dry-wet cycles. Because of the actions of the dry-wet cycles, the growth rate of the rapid growth stage of the reflected energy-time history curve reduces and the growth rate of the rapid growth stage of the transmitted energy-time history curve improves. Under the action of the dry-wet cycles, the dissipation energy ratio gradually decreases, and the decrease of energy consumption density follows a negative exponential function relationship. Under the action of multiple dry-wet cycles, the tension and compression stress frequently change between the particles of rock, resulting in a significant increase of micro-cracks and an obvious degradation effect on the dynamical properties of diorite. |
| WOS关键词 | MECHANICAL-PROPERTIES ; COMPRESSIVE STRENGTH ; FRACTURE-TOUGHNESS ; STRAIN-RATE ; SANDSTONE ; TESTS |
| 资助项目 | National Natural Science Foundation of China[41807245] ; national Key R&D Program of China[2016YFC0802203-8] ; natural Science Foundation of Shaanxi Province[2019JQ-218] ; Key R&D Program of Shaanxi Province[2018ZDXM-SF-024] ; Zhejiang Collaborative Innovation Center for Prevention and Control of Mountain Geologic Hazards[PCMGH-2017-Z-01] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | SPRINGER WIEN |
| WOS记录号 | WOS:000684068400001 |
| 资助机构 | National Natural Science Foundation of China ; national Key R&D Program of China ; natural Science Foundation of Shaanxi Province ; Key R&D Program of Shaanxi Province ; Zhejiang Collaborative Innovation Center for Prevention and Control of Mountain Geologic Hazards |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164633]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Jiangbo |
| 作者单位 | 1.Changan Univ, Highway Coll Xian, Xian 710064, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Gansu Prov Water Conservancy & Hydropower Survey, Lanzhou 730000, Gansu, Peoples R China 4.Shaoxing Univ, Shaoxing 312000, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Jiangbo,Sun, Haohui,Cui, Yilun,et al. Study on Dynamic Characteristics of Diorite Under Dry-Wet Cycle[J]. ROCK MECHANICS AND ROCK ENGINEERING,2021:11. |
| APA | Xu, Jiangbo.,Sun, Haohui.,Cui, Yilun.,Fei, Dongyang.,Lan, Hengxing.,...&Wu, Faquan.(2021).Study on Dynamic Characteristics of Diorite Under Dry-Wet Cycle.ROCK MECHANICS AND ROCK ENGINEERING,11. |
| MLA | Xu, Jiangbo,et al."Study on Dynamic Characteristics of Diorite Under Dry-Wet Cycle".ROCK MECHANICS AND ROCK ENGINEERING (2021):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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