The Mechanical Analysis and Prevention Measures of Flexural Fold Type Floor Heave

According to the deformation problem of flexural fold in south wing track roadway of Yuwu Coal Industry Company, combined with its deformation morphology and forced state, the study established mechanics model and obtained the critical load of occurring flexural instability, and presented corresponding control measures including adding anchor cable anchor bolt for roof rock, grouting for roadway two sides and floor. The construction and monitoring showed that above strengthening measures obtained effective results.