Abstract: The surrounding rock stability of extraction roadway is critical under the complicated geology of the multi fault and fold . In the complicated geology of the mining roadway of the NO7261 working face take place in a coal mine in Huaibei, the paper obtains the law of mine pressure appear of extraction roadway through pratical measurement, and analyzes the characteristics of stress distribution of the mining roadway by means of FLAC3D numerical simulation software, appears comprehensive mine pressure regularity and the numerical simulation of stress distribution characteristics of extraction roadway, obtains abutment pressure impact scope and lateral abutment pressure range of mining face , sets extraction roadway during the mining of partition reinforcement measures in advance according to the scope of influence of roadways and situation of surrounding rock, then ensures the stability of the roadway during the mining. The research results show that the strata behavior regularity of the mining roadway and advance abutment pressure distribution of the working face and the abutment pressure distribution of the roadway instruct the subarea and dynamic reinforcement support of the surrounding rock of extraction roadway, and ensure the roadway during the mining of 7261 working face in mining security and stability.

Key words: The Multi Fault and Fold, The Strata Behavior Regularity, Numerical Simulation, Subarea, The Dynamic Reinforcement Support