ANTI-COLLAPSE STRUCTURE BESIDE ROADWAY BASED ON 110 CONSTRUCTION METHOD FOR BREAKING ROOF

摘要

Disclosed is an anti-collapse structure beside a roadway based on a 110 construction method for breaking a roof. In the 110 construction method, one working face corresponds to one roadway (1), and no coal pillar is needed to be reserved. The roadway (1) is retained after operations of mining, roof cutting and pressure relief of the roadway are completed on a previous working face. Moreover, a roof (2) of the roadway (1) is arched. Directional kerf cutting is conducted on one side of the roof (2) of the roadway (1), and a kerf cutting angle is 15-20 degrees. When an underground mining is conducted, one working face corresponds to one roadway, and no coal pillar is needed to be reserved, so that resources are saved and a recovery rate is increased. In addition, the arched roof of the retained roadway can improve and guarantee the safety of the coal mining working face. Furthermore, the kerf cutting angle of 15-20 degrees can effectively guarantee a roof caving direction after roof cutting, and the influence of roof caving on roadway retaining is minimized.