Advances in Discontinuous Numerical Methods and Applications in Geomechanics and Geoengineering 2012
DOI: 10.1201/b11600-31
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Modeling method for complex key block based on Nef polyhedra

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“…Based on the above studies in Li et al (2011Li et al ( , 2012, Xue et al (2011), a new symbolic representation of rock blocks is proposed in this study by revising and developing the extension and the intension of the concepts including pyramid and block. Particularly, the non-convex blocks were identified by the new method which requires less storage space and is faster than the existing algorithms.…”
Section: Introductionmentioning
confidence: 99%
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“…Based on the above studies in Li et al (2011Li et al ( , 2012, Xue et al (2011), a new symbolic representation of rock blocks is proposed in this study by revising and developing the extension and the intension of the concepts including pyramid and block. Particularly, the non-convex blocks were identified by the new method which requires less storage space and is faster than the existing algorithms.…”
Section: Introductionmentioning
confidence: 99%
“…Although the union algorithm of several convex polyhedrons can be applied according to the principles of constructive solid geometry, it is too costly. The algorithm to generate non-convex block is proposed in Li et al (2011), Xue et al (2011). In Li et al (2011), Xue et al (2011), a non-convex block was expressed by a number of convex blocks connected with each other only at the cutting planes.…”
Section: Introductionmentioning
confidence: 99%
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