Simulation Research of Deep Coal Roadway Bolt-mesh Support Parameters under Weishan Lake
Abstract：In order to know the stress distribution and failure rules of surrounding rock in deep coal roadways under Weishan Lake,stress distribution characteristics and deformation features of surrounding rock were researched combined with typical geological conditions in different bolt-mesh support schemes with rectangular and trapezoid section using FLAC3Dnumerical simulation.The results showed the roof plastic failure zone was small and predominated by tensile failure,and the roof deformation was slightly;the rib＇s failure zone was larger and with both tensile and shear failure,and the rib＇s deformation was two times of the roof.The best scheme was chosen to be conducted industrial test,the result of mine pressure observation showed that the chosen scheme of support had controlled the stability of surrounding rock effectively.
Keywords：bolt-meshcoal roadwaysupportnumerical simulation
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)