The Research And Application Of Anchor Net Support Engineering In Steep And Horizontal Lamination Mining Roadway

Due to the special geological conditions, the anchor net support of steep roadway always is a difficulty on mine support. In this thesis on the basis of the all kinds of bolting theory, taking the support engineering with mining roadway of steeply inclined coal seam in Datai mine as the typical research object. Base on the analysis of the various mechanical properties at both micro and macro scale under different levels and the studying of coal tectonic stress field. We adopted quaternity research ways of site observation, laboratory experiment, theoretical analysis and engineering verification test to study the surrounding rock failure and support law of coal-rock roadway, we also analyzed the law of strata-pressure behavior in coal-rock roadway under the different levels and optimized different anchor supporting method, and finally fixed rational parameter of arch net support. Finally, the ring type management has been used to manage the process of support engineering. The paper research results obtains better supporting effect in Datai coal, for similar project implementation and management support mining providing scientific basis.