Limit-Equilibrium Analysis of Stability of Footwall Slope with Respect to Biplanar Failure
文献类型：期刊论文
| 作者 | Sun, Chaoyi1,2; Chen, Congxin2; Zheng, Yun2; Xia, Kaizong2 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2020 |
| 卷号 | 20期号:1页码:11 |
| 关键词 | Footwall slope Biplanar failure Slope stability Limit equilibrium analysis |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001523 |
| 英文摘要 | Biplanar failure is the most common instability type of footwall slopes, with a steeply dipping joint (typically the bedding plane) and a gently dipping joint (i.e., the daylighting toe joint) forming the basic failure surface. Limit equilibrium, due to its high efficiency and accuracy, is a widespread method in the analysis of such a failure. In this paper, a new block model of biplanar failure is first proposed on the basis of the interaction mechanisms between the active and passive blocks. Then, considering the orientation of the interblock boundary, a biplanar failure analysis method (BFAM) is presented that satisfies both the force and moment equilibrium conditions. Subsequently, a simplified biplanar failure analysis method (SBFAM) is also proposed for ease of use. Finally, parametric analysis was carried out to investigate the influence of the sliding mass depth, slope height, dip angles, and shear strength of the joints on slope stability. It was found that the safety factors of the footwall slope obtained using the BFAM approach are generally consistent with those found using the Morgenstern-Price and Spencer methods. Additionally, the safety factors using the SBFAM approach are well consistent with the physical modeling and BFAM results. |
| 资助项目 | National Natural Science Foundation of China[11602284] ; National Natural Science Foundation of China[11472293] ; Natural Science Foundation of Hubei Province[2018CFB450] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000497651200008 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23126]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zheng, Yun |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Chaoyi,Chen, Congxin,Zheng, Yun,et al. Limit-Equilibrium Analysis of Stability of Footwall Slope with Respect to Biplanar Failure[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2020,20(1):11. |
| APA | Sun, Chaoyi,Chen, Congxin,Zheng, Yun,&Xia, Kaizong.(2020).Limit-Equilibrium Analysis of Stability of Footwall Slope with Respect to Biplanar Failure.INTERNATIONAL JOURNAL OF GEOMECHANICS,20(1),11. |
| MLA | Sun, Chaoyi,et al."Limit-Equilibrium Analysis of Stability of Footwall Slope with Respect to Biplanar Failure".INTERNATIONAL JOURNAL OF GEOMECHANICS 20.1(2020):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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