control of surrounding rock of tunnel

stress of surrounding rock of tunnel

calculating of surrounding rock pressure

deformational pressure of surrounding rock

Pressure of surrounding rock

pressure of surrounding rock mass

pressure of surroungding rock mass

SURROUNDING ROCK OF TUNNEL

Analysis of surrounding rock

bearing capacity of surrounding rock

category of surrounding rock

characteristic equation of surrounding rock

CHARACTERISTICS OF SURROUNDING ROCK MASS

Classification of surrounding rock

CLASSIFICATION OF SURROUNDING ROCK MASS

Classification of surrounding rock masses

classification of surrounding rock stability

DEFORMATION AND CRACKING MECHANISM OF SURROUNDING ROCK

DEFORMATION AND FAILURE OF SURROUNDING ROCK