1 引言
随着浅部矿产资源的逐步枯竭, 采矿工程逐渐向着深部迈进. 在过去十几年里, 采矿岩石力学的研究主要集中在深部露天采矿的边坡稳定性以及深部崩落采矿法的崩落性研究. 其中, 离散断裂网络(DFN)的引入增强了这种研究的可能性. 这个笔记简要回顾了目前使用的DFN模型. 本公众号DFN Top 5总结如下:
离散断裂网络 (DFN) [P2]: fracture generate
离散断裂网络Discrete Fracture Network (DFN)
2 DFN模型回顾
在过去超过半个世纪的研究中, 研究者们提出了各种各样的DFN模型, 主要的模型概括如下. 应当意识到, 不是所有的模型都适用于合并到力学模型中. DFN模型目前用在SRM和岩桥的研究中.
(1) Orthogonal Model
(2) Beacher Disk Model
(3) Enhanced Beacher Model
(4) Veneziano Model
(5) Dershowitz Model
(6) Stochastic Mosaic Block Tessellation Model
(7) BART Model
(8) 3D Hierarchical Fracture Model
(9) Nearest NeighbourModel
(10) War Zone Model
(11) Non-Planar Zone Model
(12) Levy-Lee Model
(13) Fractal POCS Model
(14) Poisson Rectangle Model
(15) MIT Model
(16) Geostatistical models
4 参考文献
[1] Thierry Lavoie (2011) An Analytical Geomechanical Upscaling Approach for Modeling Jointed Rock Mass Behaviour Using Ubiquitous Joints. UBC MS. Thesis. 186p. (pdf)
[2] Dershowitz, W. S. (1984) Rock joint systems. MIT Ph.D Thesis. 918p. (pdf)
[3] Isabelle Staub, Anders Fredriksson, Nils Outters (2002) Strategy for a Rock Mechanics Site Descriptive Model --- Development and testing of the theoretical approach. Golder Associates AB. 219p. (pdf)
[4] Snow, D.T. (1965), “A Parallel Plate Model of Fractured Permeable Media”, Ph.D. Dissertation, University of California, Berkeley, 331p.
[5] Dershowitz, W.S., Einstein, H.H., (1988), “Characterizing rock joint geometry with joint system models”, Rock Mechanics and Rock Engineering, Vol. 21, pp. 21-51.