Parameter design and engineering application of roadways support for deep shaft roadway based on the limit equilibrium theory
LIU Li
Abstract：In response to the flow and deformation of the roadway and the instability of the surrounding rock in the 2401 mining area of Xinji No.2 Mine as the mining depth increases,the methods of meas-uring in-situ stress and analyzing the mechanical parameters of the roadway surrounding rock were employed to determine the type of the surrounding rock;based on the limit equilibrium theory,the parameters of anchor rods and anchor cables were calculated,and the support parameters of the return air uphill in the 2401 mining area were optimized;a monitoring technology for roadway surrounding rock instability-induced disasters was proposed,including borehole observation,monitoring of roadway surface deformation,monitoring of roof spalling,and monitoring of the force on anchor rods(cables).The research results have certain guiding and reference significance for the control and monito-ring of roadway surrounding rock stability under similar geological conditions,and have accumulated valuable experience for the deep coal mining in the Xinji mining area under similar geological conditions.
Keywords：limit equilibriumroadway surrounding rockroadway supportmine pressure monitoring
Publication Date：2025-08-10
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 29-38 )