Research on Bottom Heave Grouting Reinforcement Technology in Soft Rock Roadway
In view of the serious problem of floor heave deformation in soft rock roadway,this paper takes the geological conditions of the main roadway in the 15 th panel of Chengzhuang Mine as the background,analyzes the mechanism of roadway surrounding rock deformation and grouting reinforcement by theoretical analysis and field practice,and designs and tests the grouting scheme of the roadway.After the scheme is determined,the tunnel grouting area is 100 m in total,882 boreholes are grouted,and the grouting volume is 239.8 tons.According to the deformation of surrounding rock after roadway excavation,there is basically no deformation of surrounding rock after grouting,which indicates that this grouting scheme is conducive to reducing the deformation of surrounding rock of roadway.
deformation mechanismgrouting reinforcementdeformation of surrounding rock
NETL
NSTL
万方数据
