Deformation Development Mechanism in a Loess Slope With Seepage Fissures Subjected to Rainfall and Traffic Load
文献类型：期刊论文
| 作者 | Leng, Xianlun2,3; Wang, Chuan2,3; Zhang, Juan1; Sheng, Qian2,3; Cao, Shengliang1; Chen, Jian2,3 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2021-10-05 |
| 卷号 | 9页码:15 |
| 关键词 | fissured loess slope hydraulic-mechanical property seepage fissure deformation development mechanism stabilisation treatment landslide hazard |
| DOI | 10.3389/feart.2021.769257 |
| 英文摘要 | Loess landslides induced by rainfall and traffic load are significant hazards during the construction and operation of highways in many loess-covered areas. Studies of the deformation and stability of loess slopes with seepage fissures are limited. In the study, a case study of the Yangpoyao loess slope with seepage fissures in China's Loess Plateau was conducted to reveal the deformation development mechanism and assess the landslide hazards of such fissured loess slopes. First, the hydraulic-mechanical properties of the Q(2) loess were investigated through experiments, and the mathematical expressions of the relationships between various mechanical parameters and water content were fitted, indicating that the mechanical parameters, such as cohesion, angle of internal friction, and deformation modulus, vary in a quasi-linear manner with the water content. Then, a new numerical method was proposed to simulate the mechanical behaviours of the loess considering its water sensitivity and transverse isotropy, where the water sensitivity was considered through the implementation of the mathematical expressions of the hydraulic-mechanical relationships, and the transverse isotropy was considered by the modified constitutive model that combined the logics of transversely elastic model and a ubiquitous-joint model. Finally, the deformation development mechanism of the fissured loess slope under rainfall and traffic load was revealed by using the proposed method. The roles of the rainfall and traffic load in the fissure propagation and deformation development process of the slope were explored, and some stabilisation measures are recommended for the prevention of its failure. The proposed method and findings arising therefrom may provide references for future studies of the stability and landslide hazard assessment of fissured loess slopes. |
| 资助项目 | National Natural Science Foundation of China[52079135] ; International Partnership Program of the International Cooperation Bureau of Chinese Academy of Sciences[131551KYSB20180042] ; National Key Research and Development Program of China[2017YFF0108705] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000708677700001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/28506]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Leng, Xianlun |
| 作者单位 | 1.CCCC First Highway Consultants Co Ltd, State Key Lab Rd Engn Safety & Hlth Cold & High A, Xian, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Leng, Xianlun,Wang, Chuan,Zhang, Juan,et al. Deformation Development Mechanism in a Loess Slope With Seepage Fissures Subjected to Rainfall and Traffic Load[J]. FRONTIERS IN EARTH SCIENCE,2021,9:15. |
| APA | Leng, Xianlun,Wang, Chuan,Zhang, Juan,Sheng, Qian,Cao, Shengliang,&Chen, Jian.(2021).Deformation Development Mechanism in a Loess Slope With Seepage Fissures Subjected to Rainfall and Traffic Load.FRONTIERS IN EARTH SCIENCE,9,15. |
| MLA | Leng, Xianlun,et al."Deformation Development Mechanism in a Loess Slope With Seepage Fissures Subjected to Rainfall and Traffic Load".FRONTIERS IN EARTH SCIENCE 9(2021):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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