Investigation on the Collapse Mechanism of Overlying Clay Layer Based on the Unified Strength Theory
文献类型：期刊论文
| 作者 | Chen, Fan3; Wang, Yingchao1,3; Li, Yuanhai3; Jiang, Wen2 |
| 刊名 | KSCE JOURNAL OF CIVIL ENGINEERING
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 26期号:9页码:3734 |
| 关键词 | Water and sand gushing Ground collapse Unified strength theory Critical cavity radius Cavity |
| ISSN号 | 1226-7988 |
| 英文摘要 | Water and sand gushing will lead to the destruction of upper cohesive soil that further form cavity, and the ground collapse caused by the development of soil cavity adversely affects the geotechnical building or foundation. In this study, the theory of elastic mechanics clamped beam was used to establish the arbitrary point stress calculation model and the stress solution of the clay soil under the action of gravity was derived. According to the equilibrium state of ultimate stress and unified strength theory, the formula for calculating the critical radius of cavity induced by water and sand gushing was obtained. The parametric study of above formulas shows that the cavity radius decreases with the increased depth of clay layer and Poisson's number of clay layer. The higher the clay cohesion is, the higher is the cavity clay. Moreover, the limit radius of cavity first increases and then decreases with the increased of clay thickness. The results of theoretical analysis of critical collapse radius and the results of model test demonstrate that the calculating value of critical collapse radius based on unified strength theory is consistent with the test results. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000819723200010 |
| 出版者 | KOREAN SOCIETY OF CIVIL ENGINEERS-KSCE |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35027]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.School of Mechanics & Civil Engineering, China University of Mining & Technology, Xuzhou 221116, China 3.State Key Laboratory for Geomechanics and Deep Underground Engineering, China Uniersity of Mining & Technology, Xuzhou 221116, China |
| 推荐引用方式 GB/T 7714 | Chen, Fan,Wang, Yingchao,Li, Yuanhai,et al. Investigation on the Collapse Mechanism of Overlying Clay Layer Based on the Unified Strength Theory[J]. KSCE JOURNAL OF CIVIL ENGINEERING,2022,26(9):3734. |
| APA | Chen, Fan,Wang, Yingchao,Li, Yuanhai,&Jiang, Wen.(2022).Investigation on the Collapse Mechanism of Overlying Clay Layer Based on the Unified Strength Theory.KSCE JOURNAL OF CIVIL ENGINEERING,26(9),3734. |
| MLA | Chen, Fan,et al."Investigation on the Collapse Mechanism of Overlying Clay Layer Based on the Unified Strength Theory".KSCE JOURNAL OF CIVIL ENGINEERING 26.9(2022):3734. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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