Zonal disintergration phenomenon will appear after excavation in deep high stress roadway; and its stability is not very good according to the original control design. According to the on-site monitoring results of the surrounding rock deformation

through theoretical analysis and supporting test

a new bolting and grouting integrated control method is proposed. The new method includes six important issues: improving normal constraints

toughening crack arrest of bolt

coordinating of coupling support

transferring stress into internal

filling grouting of the partition

enhancing rock strength. The corresponding integrated support technology is also proposed. Firstly

high strength and high pre-tightening force bolts are used to support surrounding rock in time. The length and number of bolts is determined by the results of monitoring and partition support energy criterion respectively. Secondly

the pressure relief high-strength anchor-beam coupling support system is used to support the roof of roadway; and surrounding rock deformation compatibility is achieved and stress is transformed internally. Finally

a hollow segmented spiral delayed grouting technology is used to reinforce the cracked surrounding rock of zonal disintegration. According to above bolting and grouting integrated control method and techniques

the roadway support is designed optimizedly and applied to site tests. The monitoring results show the roadway is in stable condition.