Discrete modelling jointed rock slopes using mathematical programming methods. (April 2018)

• Record Type: Journal Article
• Authors: Meng, J.; Huang, J.; Sloan, S.W.; Sheng, D.
• Is Part Of: Computers and geotechnics. Volume 96(2018)
• Page Start: 189
• Page End: 202
• Publication Date: 2018-04
• Subjects: Discrete element method -- Jointed rock masses -- Second-order cone programming -- Mathematical programming -- Stability analysis; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2017.11.002
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: In this paper, a mathematical programming based discontinuum approach is developed for modelling jointed rock slopes. The formulation naturally leads to a standard second-order cone program, which can be solved using efficient optimisation solvers, and a purely static method is derived that does not require artificial damping parameters. Notably, the approach provides somewhat of a unification of two distinct discontinuum approaches: the soft-particle model and the hard-particle model. A series of numerical examples are conducted to validate the proposed approach. The soft-particle model is more versatile than the hard-particle model while the hard-particle model is more efficient.