A New Gob-Side Entry Retaining Approach with Reinforced Filling Gangue Wall in Thin Coal Seam

Gob-side entry retaining technology is an effective method for sustainable exploitation of coal resources and has been widely used in China. However, there are a large surrounding rock deformation and hard support in the gob-side entry retaining. In this paper, take the gob-side entry retaining in thin coal seam from Jiyang Coal Mine as the engineering background. Firstly, using FLAC software to simulate and analyze the deformation and stress...