Abstract: Based on the problems of tight replacement of coal mining and difficult control of roadway surrounding rock,taking the 1604 working face of Guhanshan mine as the research background,this paper puts forward the technology of roof cutting and pressure relief to keep roadway along the goaf.Based on the theoretical analysis of the control principle of gob side and the movement characteristics of surrounding rock,the stability control system of gob side in the technology of top cutting and pressure relief is formed,and the industrial test is carried out in the field.The results show that it is feasible to use highstrength prestressed anchor cable to reinforce the roof,single column π beam to support the roof and the protection system of Isteel gangue.The maximum displacement of the solid coal side is 276 mm,the maximum displacement of the goaf side is 216 mm,the maximum displacement of the roof is 225 mm,and the maximum uplift of the floor is 164 mm.The deformation of the protection system of the goaf side gangue is not obvious,and the roadway is changed In a reasonable range,the effect of retaining roadways is good,which can be used for reference in similar conditions.

Key words: surrounding rock control, top cutting pressurerelief, gobside entry retaining, roof