期刊
COMPUTERS AND GEOTECHNICS
卷 81, 期 -, 页码 1-18出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2016.07.009
关键词
Hydro-mechanical (HM) coupling; Numerical modelling; Finite-discrete element method (FDEM); Rock fractures; Hydraulic fracturing; Fluid flow
类别
资金
- National Scientific and Engineering Research Council (NSERC) of Canada
This paper presents a new, fully-coupled, hydro-mechanical (HM) formulation for a finite-discrete element method computer code. In the newly-developed, hydraulic solver, fluid flow is assumed to occur through the same triangular mesh used for the mechanical calculations. The flow of a viscous, compressible fluid is explicitly solved based on a cubic law approximation. The implementation is verified against closed-form solutions for several flow problems. The approach is then applied to a field-scale simulation of fluid injection in a jointed, porous rock mass. Results show that the proposed method can be used to obtain unique geomechanical insights into coupled HM phenomena. (C) 2016 Elsevier Ltd. All rights reserved.
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