Application of D-CRDM Method in Columnar Jointed Basalts Failure Analysis | Zendy

Changyu Jin | Zendy; XiaTing Feng | Zendy; Chengxiang Yang | Zendy; Dan Fang | Zendy; Jiangpo Liu | Zendy; Shuai Xu | Zendy

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Application of D-CRDM Method in Columnar Jointed Basalts Failure Analysis

Author(s) -

Changyu Jin,

XiaTing Feng,

Chengxiang Yang,

Dan Fang,

Jiangpo Liu,

Shuai Xu

Publication year - 2013

Publication title -

journal of applied mathematics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.307

H-Index - 43

eISSN - 1687-0042

pISSN - 1110-757X

DOI - 10.1155/2013/848324

Subject(s) - rock mass classification , discontinuity (linguistics) , basalt , finite element method , softening , geology , cracking , anisotropy , materials science , joint (building) , geotechnical engineering , structural engineering , composite material , mathematics , engineering , physics , mathematical analysis , geochemistry , quantum mechanics

Columnar jointed basalt is a type of joint rock mass formed by the combined cutting effect of original joints and aphanitic microcracks. After excavation unloading, such rock mass manifested distinct mechanical properties including discontinuity, anisotropy, and proneness of cracking. On the basis of former research findings, this paper establishes a D-CRDM method applicable to the analysis of columnar jointed basalt, which not only integrates discrete element and equivalent finite-element methods, but also takes into account the coupling effect of original joints and aphanitic microcracks. From the comparative study of field monitoring data and strain softening constitutive model calculated results, it can be found that this method may well be used for the simulation of mechanical properties of columnar jointed basalts and the determination of rock failure mechanism and failure modes, thus providing references for the selection of supporting measures for this type of rock mass. © 2013 Changyu Jin et al.

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