Support of a Main Inclined Shaft with Weakly Cemented Soft Rock
LI Jun
LI Xue-bin
WANG Lei
Abstract：In order to analyze surrounding rock stress and deformation and cable /bolt stress of a main inclined shaft with weakly cemented soft rock , and to verify the validity of several supporting designs , construction processes of the main inclined shaft were simulated by geotechnical software MIDAS -GTS, and deformation and stress of surrounding rock , concrete plate , bolt and steel support under three different supporting designs were compared .The results show that combined bolt -bar mat-shotcrete -steel bracket design can support weakly cemented and easy weathering/hydrolyzing soft rock more effectively .Bolt-bar mat-shotcrete-steel bracket supporting can be instead with full section bolt -bar mat-shotcrete supporting in waterless sections . The effect of current support design will be improved if parameters of bolts and steel brackets are changed properly .
Keywords：Inclined shaftweakly cemented soft rockMIDASnumerical simulationsupport
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 54-59 )