doi:10.3850/9789810844554-0035 A New Contact Method Using Inscribed Sphere for 3D Discontinuous Deformation AnalysisTae-Young Ahn1,a, Sung-Hoon Ryu1, Jae-Joon Song1 and Chung-In Lee21Department of Energy Resources Engineering, Seoul National University, Seoul, Korea.2Geogeny Consultants Group Inc., Seoul, Korea. |