Effects of cyclic wetting-drying on the mechanical behavior and improved damage model for sandstone
文献类型：期刊论文
| 作者 | Liu, Xuewei1; Liu, Quansheng1; Huang, Shibing3; Liu, Bin1; Liu, Jiang2 |
| 刊名 | MARINE GEORESOURCES & GEOTECHNOLOGY
 |
| 出版日期 | 2020-09-23 |
| 页码 | 11 |
| 关键词 | Wetting-drying cycle damage variable damage constitutive model sandstone rock mechanics |
| ISSN号 | 1064-119X |
| DOI | 10.1080/1064119X.2020.1823535 |
| 英文摘要 | The degradation of rock mechanical behavior after cyclic wetting and drying could affect the stability of rock slope, embankment, and tunnel significantly. A series of tests were first conducted on sandstone collected from a reservoir bank slope. The results showed that the mechanical parameters (including tensile strength, uniaxial compressive strength, elastic modulus, and internal friction angle) decrease as the cyclic number of wetting and drying increases. Then, a damage variable, which can consider the combined influence of cyclic wetting-drying and loading, was first proposed based on test results. Further, an improved damage model, which considers the effect of cyclic wetting-drying on internal friction angle and the nonlinear deformation characteristics in the fissure closure stage, was established with statistical damage mechanics. The determination method for the parameters in the proposed damage model was also introduced. Finally, the effectiveness of proposed model was verified by comparing with experimental data. The verification indicates that the results from the improved model agree well with test results, and the improved model can enhance the prediction accuracy over the original model. |
| 资助项目 | National Nature Science Foundation of China[41602324] ; National Nature Science Foundation of China[51774267] ; Natural Science Foundation of Hubei Province[2019CFB535] ; China Scholarship Council[201804910219] |
| WOS研究方向 | Engineering ; Oceanography ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000573103000001 |
| 出版者 | TAYLOR & FRANCIS INC |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24854]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Xuewei |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Hubei, Peoples R China 2.Chongqing Univ, Sch Civil Engn, Dept Geotech Engn, Chongqing, Peoples R China 3.Wuhan Univ Sci & Technol, Sch Resources & Environm Engn, Dept Resource Engn, Wuhan, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xuewei,Liu, Quansheng,Huang, Shibing,et al. Effects of cyclic wetting-drying on the mechanical behavior and improved damage model for sandstone[J]. MARINE GEORESOURCES & GEOTECHNOLOGY,2020:11. |
| APA | Liu, Xuewei,Liu, Quansheng,Huang, Shibing,Liu, Bin,&Liu, Jiang.(2020).Effects of cyclic wetting-drying on the mechanical behavior and improved damage model for sandstone.MARINE GEORESOURCES & GEOTECHNOLOGY,11. |
| MLA | Liu, Xuewei,et al."Effects of cyclic wetting-drying on the mechanical behavior and improved damage model for sandstone".MARINE GEORESOURCES & GEOTECHNOLOGY (2020):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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