Development status and improved proposals on gob-side entry retaining support technology in China

The paper summarized and introduced the support mode in the mine gateway and at the side of the gateway and the theoretical study status for the gob-side entry retaining.The paper analyzed the suitable condition for the gob-side entry retaining.The paper pointed that the main problems existing in the present gob-side entry retaining in China were the irrational support design ideal,support system in the mine gateway being passive support,the gateway side support with unsuitable between the mechanics performances and the surrounding rock deformation of the gob-side entry retaining and the les deep study on surrounding rock control mechanism of the gob-side entry retaining.The paper pointed that the gob-side entry retaining technology should be a system project,the bolt/steel mesh and anchor combined support should be as the basic support for the gob-side entry retaining and the proposals on the development of the gob-side entry retaining technology.