Research on new roof rock structure probe of seam gateway

With the analysis on the internal relationship between the drilling information of the bolter and the rock physic mechanism property,the paper selected related drilling information as the feature parameters of the identified rock structure and a new roof rock structure probe was developed. With the small wave analysis and PB nervous network to treat the probing data,the roof rock structure of the seam gateway drilled can be identified.After the practices in the Shijietai Mine of Shendong Mining Area,the results showed that the new roof rock structure probe of seam gateway could be continuously to select the probing data,could dynamically identify the rock structure of the roof bolts,could meet the needs of the sit support design,could effectively reduce the support cost of coal production and prevent the roof failure accidents due to improper support.