Compensated Support Technology of Key Location in Asymmetric Deformation of Local Weak Structure in Mine Soft Rock Roadway
MA Shou-long
Abstract：A support instability of a mine soft rock roadway was generally caused by the insufficient re-sistance of the symmetry support structure and the local weak structure.The local weak structure of the mine roadway would cause the instability of the support system and would be a common phenome-non occurred in the engineering construction.With the analysis on the asymmetric deformation failure mechanism,the paper provided the compensated support countermeasures to the key location of the asymmetric deformation in the local weak structure of the mine soft rock roadway (that was to based on the conventional bolt/steel mesh/shotcreting support,the asymmetric compensated support would be conducted on the local weak structure with the length and number of the bolts increased and the bolt/grouting support).The engineering experiment was conducted with the estimated effect.
Keywords：mine soft rock roadwaylocal weak structureasymmetric deformationcompensated sup-port
Publication Date：2016-05-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 19-21,24 )