Analysis on Deformation Failure Mechanism of an Open-Pit Landslide

Abstract:

Taken an open-pit landslide as an example, the cause of formation and the factors inducing the slope to failure are analyzed. According to deformation characteristic of the landslide, the deformation has been exacerbating with the deep mining in depth, and the deformation has close relationship with the rainfall. Rainwater infiltration, which soften the rock mass and induce the pore water pressure to increase, induce envoke landslides. Through analysis on the factors of landslides, the formation lithology(FL) and precipitation are main factors triggering generation and reactivation of landslides. Meanwhile, the deformation failure mechanism and instability mode of the landslide is obtained, which is the sliding and bending deformation model.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 245-250
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.245
• Online since: December 2012
• Authors: Fei Zhang, Jing Cao, Hui Min Zhao
• Keywords: Deformation Mechanism, Instability, Landslide, Sliding and Bending

References

[1] Run-Qiu Huang. Large-scale landslides and their sliding mechanisms in China since the 20th century[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(3):433-454.

[2] Qi-Hua Zhang, Xiu-Li Ding, Ai-Qing Wu. Prediction of deformation and failure of landslide discusses on some problems[J]. The Chinese Journal of Geological Hazard and Control, 2005, 16(2)：116-120.

[3] Polemio M Sdao F The role of rain fall in the landslide hazard：the case of the Avigliano urban area(Southern Apennies, Italy)[J]．Eng Geol, 1999, 53：297-309.

DOI: 10.1016/s0013-7952(98)00083-0

[4] AU S W C. Rain-induced slope instability in Hong Kong [J]. Engineering Geology, 1998, 51(1):1~36.

DOI: 10.1016/s0013-7952(98)00038-6

[5] Kun-Long Yin, Zai-Sheng Han, Zhi-Zhong Li. Progress of landslide researches in the world[J]. Hydrogeology and Engineering Geology, 2000, 27(5)：1-4.

[6] Parise M Wasowski J. Landslide activity maps for landslide hazard evaluation three case studies from Southern Italy [J]. Natural Hazards, 1999, 20(2/3) ：159-183.