Research on Deformation Characteristics and Control Technology of Soft Rock Roadway under Dynamic Disturbance

In the mining process of an underground coal mine, dynamic load often causes great damage to roadway and affects normal mine. this paper, deformation surrounding rocks under static different disturbance intensities is studied by numerical simulation. The results show that same condition, greater strength is, more obvious roof displacement subsidence is. With increase in propagation distance, amplitude waveform decreases gradually. Under intensity, variation with frequencies studied. According influence on roadway, a combined support plan shotcrete anchor net reinforcement cable proposed. Finally, rationality optimized scheme verified simulation field results. can effectively broken soft rock reduce rock. At time, it releases expansion energy generated mutual compression layers, maintaining long-term stability roadway.