›› 2006, Vol. 27 ›› Issue (S1): 1112-1118.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Two dimensional elastoplastic distinct element analysis of high rock slope

CHEN Xiao-bin1，ZHANG Jia-sheng1，AN Guan-feng2，LIU Xue-peng3   

  1. 1. School of Civil and Architectural Engineering, Central South University, Changsha 410075, China；2. Department of Civil Engineering, Tsinghua University, Beijing 100084, China；3. Central South Design & Research Institute of Hydroelectric Projects, Changsha 410014, China
  • Received:2006-03-20 Published:2006-12-15

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Abstract: In order to analyze the anchors supporting structure’s effects, the 1+016-1+080 navigation route bank high rock slope in Longtan Hydropower Station were respectively computed under the supported and un-supported conditions by two-dimensional plane elastoplastic distinct element method(DEM). In the computation, the stress field, deformation field, plastic yielded zones distribution and stability were respectively calculated under supported and un-supported conditions. At the same time, the anchors axial forces during the excavation steps and the groundwater level effects on the slope deformation are also calculated. The analytical results show that there are obvious differences between the supported and un-supported conditions; and the anchors supporting structure can diminish slope deformation and improve the slope stability. Meanwhile, the ground water level of the slope has the obvious effects on the slope’s deformation and stability. The slope top deformation and the anchors’ inner force are measured during the excavation step and there was a good agreement between the DEM computation values and the surveyed values; for example, the max calculated slope top deformation is 9.48cm while the measured values is 7.55cm; and it is shown that the 2D elastoplastic distinct element method is suitable to calculate the high rock slope problems.

Key words: distinct element method, high rock slope, slope stability analysis

CLC Number: 

  • TU 472.3
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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