Analysis and Application of Grouting Reinforcement Mechanism to Mine Broken and Soft Roadway in Deep Geological Abnormal Tectonic Zone
XU Sheng
YAO Zhi-shu
Abstract：In a construction of a belt conveyor roadway in the South Wing of Huainan Guqiao Mine ,the belt conveyor roadway should pass through a geological abnormal zone formed by a fault .The rock was broken and soft ,the geostress was high ,the loose circles were large and the support difficulty was high .During the heading process of the mine roadway ,sidewall spalling and roof falling would be easi-ly occurred ,the deformation would be high in the early stage of the support operation and the conven-tional passive support could be hard to be in effect .With the measures of the advance grouting rein-forcement ,backfill grouting ,floor grouting and others ,the loading capacity of the surrounding rock was improved ,the deformation of the surrounding rock was effectively controlled and the safety con-struction of the mine roadway was ensured.The paper stated the grouting reinforcement mechanism of the broken surrounding rock and introduced the application conditions of the grouting reinforcement technology to the mine roadway construction passing through the geological abnormal tectonic zone.
Keywords：geological abnormal tectonic zonegrouting reinforcementmine broken and soft roadwayloose circles in surrounding rock
Publication Date：2014-02-22
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 49-52 )