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Analysis and monitoring of roadway deformation mechanisms in nickel mine, China
Author(s) -
Lu Rong,
Ma Fengshan,
Guo Jie,
Zhao Haijun
Publication year - 2018
Publication title -
concurrency and computation: practice and experience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 67
eISSN - 1532-0634
pISSN - 1532-0626
DOI - 10.1002/cpe.4832
Subject(s) - geology , deformation (meteorology) , shearing (physics) , mining engineering , deformation mechanism , geotechnical engineering , roof , failure mechanism , deformation monitoring , coal mining , displacement (psychology) , engineering , coal , structural engineering , materials science , psychology , microstructure , oceanography , metallurgy , psychotherapist , waste management
Summary Deformation of surrounding rock of roadway in deep is an important issue for mining engineering. We did some investigations and monitoring works in Jinchuan Mine 2. In this paper, based on field investigation, roadway deformation was summarized three features: horizontal displacement of roadway is larger than vertical displacement; roadway deformation has time effect, and also has large convergence. The monitoring data showed that roadway deformation was influenced by mining operation, but the scope of mining influence is not large. Roof conditions have effect to deformed process of roadway. Three mechanisms of surrounding rock deformation were analyzed that are rock dilatancy mechanism; shearing wedges block slide mechanism; springback of surrounding rock mechanism. We compared these mechanisms to field rock failure.