Identifying geomechanical parameters of high cut rock slopes by an improved multi-output support vector machine method
文献类型：期刊论文
| 作者 | Li, Shaojun1; Zhao, Hongbo2; Ru, Zhongliang2; Sun, Qiancheng1; Li, Jiajian3 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2016 |
| 卷号 | 75期号:8页码:- |
| 关键词 | Rock slope Back analysis Multi-output support vector machine (MSVM) Artificial bee colony algorithm (ABC) |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-016-5491-y |
| 英文摘要 | Mechanical parameters of geomaterials are very important to slope stability assessment, design, and safety construction. Back analysis is a practical engineering tool which is commonly used to identify geomechanical parameters based on monitored displacement during slope excavation. The key problem is to establish the nonlinear relationship between geomechanical parameters and the monitored displacements at different excavation steps. This paper presents an improved multi-output support vector machine (MSVM) method which integrates the artificial bee colony algorithm (ABC), numerical analysis, and updated displacement monitoring. MSVM was used to map the complex relationship between geomechanical parameters and slope displacement increments. Training samples were chosen following a Latin hypercube model and their data were applied to numerical model. ABC formed the back analysis, searching for optimal geomechanical parameters based on the MSVM model and field-monitored displacement. The proposed method was applied to a high abutment steep rock slope of the Longtan hydropower station in China and successfully represented the relationship between geomechanical parameters and displacement increments. Updating the displacements at different excavation steps improved the precision of recognition. Reasonable mechanical parameters were identified and adopted in the slope stability analysis. |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000375063400044 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3857]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Henan Polytech Univ, Sch Civil Engn ; 3.Longtan Hydropower Dev Co Ltd |
| 推荐引用方式 GB/T 7714 | Li, Shaojun,Zhao, Hongbo,Ru, Zhongliang,et al. Identifying geomechanical parameters of high cut rock slopes by an improved multi-output support vector machine method[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(8):-. |
| APA | Li, Shaojun,Zhao, Hongbo,Ru, Zhongliang,Sun, Qiancheng,&Li, Jiajian.(2016).Identifying geomechanical parameters of high cut rock slopes by an improved multi-output support vector machine method.ENVIRONMENTAL EARTH SCIENCES,75(8),-. |
| MLA | Li, Shaojun,et al."Identifying geomechanical parameters of high cut rock slopes by an improved multi-output support vector machine method".ENVIRONMENTAL EARTH SCIENCES 75.8(2016):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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