The roof plate in the excavation area of 91105 back to the wind tunnel is a soft composite roof plate,and the roadway has a large amount of deformation under the influence of geostress,low strength of the surrounding rock,and mining disturbances,etc.It is difficult to meet the needs of the surrounding rock control with the original anchor rod and anchor net support.Combined with the geological conditions of the 91105 return lane,it is proposed to use the full-section high preload anchor cable to support the surrounding rock,give full play to the anchor cable suspension ability to enhance the stability of the surrounding rock itself,and give specific parameters for the support of the surrounding rock.After the application on site,91105 back to the wind lane perimeter rock deformation of the problem can be better solved,the roadway in the use of the period of time basically do not need to repair,the scene to achieve a better effect of perimeter rock support.
composite roof plateperimeter rock supportfull-section anchor cable supporthigh preload force
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