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http://dx.doi.org/10.7474/TUS.2019.29.5.318

Hydraulic Analysis of a Discontinuous Rock Mass Using Smeared Fracture Model and DFN Model  

Park, Jungchan (Department of Energy Resources Engineering, Inha University)
Kim, Jin-Seop (Korea Atomic Energy Research Institute)
Lee, Changsoo (Korea Atomic Energy Research Institute)
Kwon, Sangki (Department of Energy Resources Engineering, Inha University)
Publication Information
Tunnel and Underground Space / v.29, no.5, 2019 , pp. 318-331 More about this Journal
Abstract
A three-dimensional(3D) equivalent continuum modeling was performed to analyze hydraulic behavior of rock mass considering discontinuities by using DFN model and smeared fracture model. DFN model was generated by FLAC3D and smeared fracture model was applied by using FISH functions, which is built-in functions in FLAC3D, for equivalent continuum model of fractured rock mass. Comparative analysis with 3DEC, which is for discontinuum analysis, was conducted to verify reliability of equivalent continuum analysis by using FLAC3D. Similar results of hydraulic analysis under the same conditions could be achieved. Equivalent continuum analysis of fractured rock mass by using DFN model was implemented to compare with existing analytical methods for inflow into the tunnel.
Keywords
DFN; hydraulic analysis; smeared fracture model; discontinuous rock; FLAC3D; 3DEC;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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