Rock burst behavior law of mine under superposition influence of multiple tectonic zones
In order to study the stress distribution law and anti-rock burst mechanism of roadway under the influence of fault-fold dual structure,a numerical model was established through FLAC3D to analyze the influential characteristics of structural type,fault dip angle and coal strength on the stress in the tectonic influential zone,and the simulation results showed that the fault-fold structure,F3 fault dip angle of 65° and coal elastic modulus of 2.6GPa were important factors causing stress con-centration-induced rock burst events.At the same time,the monitoring data of microseismic events were analyzed,the high and low energy level events were divided,the causes of the rock burst during roadway mining and service were determined,and reasonable anti-rock burst measures were given.
rock bursttectonic influencemicroseismic eventfault dip
万方数据
维普
