The destruction migration features and controlling of floor rock in the deep mining roadway
Abstract：With the increase of mining depth,the problems of floor heave in the mining roadway is becoming more and more serious.Against the problem of the floor heave in the deep roadway,it calculates the bending rigidity and buckling load of the floor strata of roadway using the theory of mechanics of elastoplasticity,and arrives at the buckling load curve in case of the different depth and the different width of the floor;it analyzes the migrational and evolutionary process of the rock mass in plastic zones of the floor strata on the base of the slip line field theory,and then applying the results to practice,proposes the special parameters and the construction suggestions about the controling of floor heave.
Keywords：deep mining roadwayfloor heavefailure mechanismcritical loadmigration path
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 30-34,38 )