Upper Limit Analysis for the Ultimate Bearing Capacity of a Multilayer Slope with Horizontal Stratification
文献类型：期刊论文
| 作者 | Liu, Shiwei; Su, Hui; Zhang, Zhenping; Leng, Xianlun; Qu, Chunlai; Li, Jianhe |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 23期号:6 |
| ISSN号 | 1532-3641 |
| 关键词 | Ultimate bearing capacity Upper bound limit analysis Multirigid block Multilayer slope Failure mechanism |
| 英文摘要 | The ultimate bearing capacity is one of the most important mechanical parameters in the mining and geotechnical fields and has a vital influence on the stability of slopes and the safety of constructions and structures. The determination of the ultimate bearing capacity has become a controversial issue in slope engineering. This study proposes a way to obtain the ultimate bearing capacity of a multilayer slope with horizontal stratification. According to limit analysis theory, three typical multiblock sliding failure modes for a multilayer slope with horizontal stratification are established. The upper limit solution of the ultimate bearing capacity of a multilayer slope, considering the influence of horizontal stratification, is derived. The optimization procedure is carried out to obtain the optimal value of the ultimate bearing capacity by using the sequential quadratic programming algorithm. The accuracy of the present method is proven based on a comparison of calculation results using other analytical methods and the numerical simulation method. The influence analysis of the parameters, involving the slope angle, soil strength, and distance of the foundation from the slope shoulder, is performed. The results indicate that the error between the calculated results of the present method and those of numerical simulation, as well as the error between the calculated results of the present method and those of other existing methods, is less than 10%. The ultimate bearing capacity linearly decreases with increasing slope angle, while it linearly increases with increasing distance of the foundation from the slope shoulder. The analytical method provides a method to analyze the ultimate bearing capacity of a multilayer slope, which effectively solves the problem of heterogeneity of soil layers observed in the natural slope. The results from this study can be used as a guide to estimate the stability of the slope and design of the foundation on a slope considering the load action near the slope. |
| 学科主题 | Engineering |
| 语种 | 英语 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| WOS记录号 | WOS:000971249600015 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35474]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS 3.Shenyang University of Technology; 4.Hebei University of Engineering; |
| 推荐引用方式 GB/T 7714 | Liu, Shiwei,Su, Hui,Zhang, Zhenping,et al. Upper Limit Analysis for the Ultimate Bearing Capacity of a Multilayer Slope with Horizontal Stratification[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2023,23(6). |
| APA | Liu, Shiwei,Su, Hui,Zhang, Zhenping,Leng, Xianlun,Qu, Chunlai,&Li, Jianhe.(2023).Upper Limit Analysis for the Ultimate Bearing Capacity of a Multilayer Slope with Horizontal Stratification.INTERNATIONAL JOURNAL OF GEOMECHANICS,23(6). |
| MLA | Liu, Shiwei,et al."Upper Limit Analysis for the Ultimate Bearing Capacity of a Multilayer Slope with Horizontal Stratification".INTERNATIONAL JOURNAL OF GEOMECHANICS 23.6(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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