Study on the Large Cross -section Tunnel with High Pre -stress Bolt Support in Deep Mine
GUO Ming-gong
Abstract：According to the underground pressure conditions of the deep auxiliary transport roadway in E9,10 coal seam of No. 8 coal mine of Pingdingshan Coal (Group) Co. Ltd,the paper employes the theoretical formula to cal-culate the sectional span and bolt support parameters, such as the length, diameter, spacing, etc. A bolt roadway support optimal scheme is obtained after the analysis of surrounding rock of roadway damage with a numerical simu-lation method,and applied it in a project. Combining the analysis of displacement of surrounding rock, bolt and ca-ble stress monitoring data, to verify the design parameters of the optimization project, it’s helpful for the design theory and technology in the adjacent roadway bolt support.
Keywords：deep welllarge sectionroadway supportingnumerical simulationbolt supporting
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 )