Study of Reinforcement Control Technology and Roof Deformation of Oblique Cross with Large Section

Aimed at the fact of large section,thick complex roof and serious water leakage in oblique crossing,the surrounding rock deformation and the stress distribution are analyzed by numerical simulation.The results indicate that the maximal horizontal stress lies in the roof while the maximal vertical stress is in rock pillar of the oblique crossing.The chemical consolidation technique and cable supplement support are adopted in the crossing roof to improve the bearing capacity of the whole bolt-rock support body.The engineering application shows that the surrounding rock displacement is effectively controlled and a good technique effect is obtained by using the chemical consolidation technique and cable supplement supports.