Spatial discrete element analysis of problem on floor buckling in underground openings

All-Russian Conference on Challenges for Development in Mining Science and Mining Industry devoted to the 85th anniversary of Academician Mikhail Kurlenya

Klishin, S.V.^1 ; Revuzhenko, A.F.^1

Chinakal Institute of Mining, Siberian Brunch, Russian Academy of Science, Novosibirsk, Russia^1

关键词: Critical load;    Deformation and failures;    Discrete element analysis;    Discrete elements;    Kinematic patterns;    Surrounding rock mass;    Tectonic stress;    Underground opening;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/53/1/012012/pdf
DOI  :  10.1088/1755-1315/53/1/012012

来源: IOP

【 摘 要 】

The authors analyze 3D problem on instability of a long arch cross-section opening using the method of discrete elements. Under analysis is loading by gravitational and tectonic stresses. Dilatancy, dry friction and viscosity are taken into account. It is assumed that contacting particles have an in-between elastic bonding element that fails under critical load. The article presents kinematic patterns of deformation and failure of surrounding rock mass around an underground opening.