Failure mechanism of rock masses with complex geological conditions in a large underground cavern: A case study
文献类型：期刊论文
| 作者 | Zhao, Jin-Shuai2,3; Duan, Shu-Qian4; Chen, Bing-Rui5; Li, Lei6; He, Ben-Guo7; Li, Peng-Xiang8; Liu, Guo-Feng1 |
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2024-02-01 |
| 卷号 | 177页码:14 |
| 关键词 | Underground caverns Intact rock masses Weak interlayer zone Moment tensor Failure mechanism |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2023.108439 |
| 英文摘要 | Reasonable and accurate identification of the failure mechanism of rock masses is of great significance for achieving a comprehensive and thorough understanding of the fracture process in underground caverns under high geostress. Sophisticated microseismic (MS) monitoring was established in underground cavern groups to capture the excavation-induced microfracture signals of intact rock masses and rock masses with weak interlayer zones (WIZs). To clarify the mechanical mechanisms controlling the surrounding rock failure modes, the moment tensor inversion method is adopted to fully reveal the fracture types and focal mechanism solutions (strike, dip and rake) of the rock masses. The spatial distribution of the MS events shows that the excavation-induced microfractures of intact rock masses are concentrated in the working face of underground intersecting cham-bers. The fracture mechanisms of intact rock masses are dominated by tensile fracturing. Compared with those in intact rock masses, the microfractures induced by excavation in rock masses with WIZ form a strip-like cluster area along the WIZ, and the proportion of shear fractures is significantly higher. The moment tensor method quantitatively reveals the failure mechanism of excavation-induced microseismicity of rock masses with complex geological conditions. |
| 资助项目 | National Natural Science Funding of China[52209132] ; National Natural Science Funding of China[52222810] ; National Natural Science Funding of China[52209120] ; National Natural Science Funding of China[52279114] ; Central South University Innovation-Driven Research Programme[2023CXQD063] ; CRSRI Open Research Program ; China Postdoctoral Science Foundation[SN: CKWV20231173/KY] ; [2023T160200] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001166125100001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40662]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Duan, Shu-Qian |
| 作者单位 | 1.Changan Univ, Sch Highway, Xian 710064, Shanxi, Peoples R China 2.Jiangsu Univ, Fac Civil Engn & Mech, Zhenjiang 212013, Jiangsu, Peoples R China 3.Minist Water Resources, Yangtze River Sci Res Inst, Key Lab Geotech Mech & Engn, Wuhan 430010, Peoples R China 4.Zhengzhou Univ, Sch Civil Engn, Zhengzhou 450001, Henan, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 6.Cent South Univ, Key Lab Metallogen Predict Nonferrous Met & Geol E, Minist Educ, Changsha 410083, Hunan, Peoples R China 7.Northeastern Univ, Key Lab, Minist Educ Safe Min Deep Met Mines, Shenyang 110819, Liaoning, Peoples R China 8.Heze Univ, Coll Urban Construct, Heze 274015, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Jin-Shuai,Duan, Shu-Qian,Chen, Bing-Rui,et al. Failure mechanism of rock masses with complex geological conditions in a large underground cavern: A case study[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2024,177:14. |
| APA | Zhao, Jin-Shuai.,Duan, Shu-Qian.,Chen, Bing-Rui.,Li, Lei.,He, Ben-Guo.,...&Liu, Guo-Feng.(2024).Failure mechanism of rock masses with complex geological conditions in a large underground cavern: A case study.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,177,14. |
| MLA | Zhao, Jin-Shuai,et al."Failure mechanism of rock masses with complex geological conditions in a large underground cavern: A case study".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 177(2024):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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