Abstract: Through the analysis of measured data on roof abscission layer, surface displacement, deep displacement and forced state of bolt and cable of Ⅱ28 mining area up roadway, surrounding rock deformation law of cable anchor support roadway under condition of floor cross mining was obtained. The result indicated deformation of surrounding rock mainly occurred at effect violent period of mining of above cross mining working face,especially at the rock mass with more developed fracture. Reasonable support could control the deformation of surrounding rock and ensure the section of roadway could meet the request of production.

Key words: Cross mining, Floor roadway, Bolt-mesh-anchor support, Mineral pressure observation