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Rockfall and Toppling Failure Simulation of Rock Slopes using 3-Dimensional Discontinuous Deformation Analysis

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키워드

주제분류자원공학

초록

Many researches on disaster prevention using computer simulation methods can be performed to minimize the damage of property and to protect human life. Discontinuous deformation analysis (DDA) is a new computer simulation method to analyze the behavior of discontinuous rock masses. Since most rock slope problems are 3-dimensional in nature, 2-dimensional deformation analysis has limited application. In this study, the basic principles of 3-dimensional discontinuous deformation analysis are described. The newly developed 3-dimensional discontinuous deformation analysis method is proposed as the computer simulation method for discontinuous rock masses. Then, the failure behavior of rock slopes are simulated using 3-dimensional discontinuous deformation analysis. The simulation results are compared and examined with the failure behavior at the rock slopes. The results show the applicability of 3-dimensional discontinuous deformation analysis to analyze the deformation and failure mechanisms of rock slopes.

Abstract

Many researches on disaster prevention using computer simulation methods can be performed to minimize the damage of property and to protect human life. Discontinuous deformation analysis (DDA) is a new computer simulation method to analyze the behavior of discontinuous rock masses. Since most rock slope problems are 3-dimensional in nature, 2-dimensional deformation analysis has limited application. In this study, the basic principles of 3-dimensional discontinuous deformation analysis are described. The newly developed 3-dimensional discontinuous deformation analysis method is proposed as the computer simulation method for discontinuous rock masses. Then, the failure behavior of rock slopes are simulated using 3-dimensional discontinuous deformation analysis. The simulation results are compared and examined with the failure behavior at the rock slopes. The results show the applicability of 3-dimensional discontinuous deformation analysis to analyze the deformation and failure mechanisms of rock slopes.

참고문헌 (13)

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  3. Huebner, K. H, "The Finite Element Method for Engineering" (1975), John Wiley & Sons, Inc
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  7. Jing, L, "Formulation of Discontinuous Deformation Analysis (DDA) - An Implicit Discrete Element Model for Block Systems", Engineering Geology, 49, pp.371~381 (1998)
  8. Kim, Y.-I, "Modeling the Effect of Excavation Sequence and Reinforcement on the Response of Tunnels with Discontinuous Deformation Analysis Method", Tunnel & Underground Space, 10, pp.25~32 (2000)
  9. Ohnishi, Y, "Survey, Analysis and Evaluation for Discontinuous Rock Mass", Soil and Foundation, 47, pp.61~62 (1999)
  10. Ohnishi Y, "Mass Analysis Techniques and Rock Mass Modeling", Geology and Survey, 83, pp.26~33 (2000)
  11. Ohnishi Y, "Lecture: Numerical Methods and Tunneling", Proc. the Fourth Int. Summer Symp, pp.1~21 (2002)
  12. Sasaki, T, "Discontinuous Deformation Analysis and Its Applicationto Rock Mechanics Problems", J. of GeotechnicalEngineering, 493, pp.11~20 (1994)
  13. Shi, G. H, "Discontinuous Deformation Analysis- A New Numerical Model for the Static and Dynamicsof Block Systems", 박사, pp.1989

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