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Block Deformation Analysis Using Three-dimensional Discontinuous Deformation Analysis(DDA)  

장현익 (서울대학교 공학연구소)
이정인 (서울대학교 지구환경시스템 공학부)
Publication Information
Tunnel and Underground Space / v.12, no.3, 2002 , pp. 158-170 More about this Journal
Abstract
Since the development of Discontinuous Deformation Analysis (DDA) by Shi (1984), there has been much improvement in the theory and programs. These, however, are all based on the assumption of a two-dimensional plane strain or plane stress state; and because a rock block system is a three-dimensional problem, a two-dimensional analysis has limited application. So a three-dimensional analysis is required in the design of rock slopes and underground spaces where three-dimensional discontinuities dominate stability. In this study three-dimensional DDA program is developed using the Shi's two-dimensional theory and program, and the two cases of three-dimensional block are analysed. The program is applied to one sliding-face blocks and wedge sliding and it gives the good results comparing to the exact solution. Multi-block cases will be analysed for many other application soon.
Keywords
Three-dimension; Discontinuity; DDA;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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