|
Abstract Dongguashan Copper Mine is one of the deepest metal mines with rockburst proneness in China at present，and the highest stress is 38 MPa. In order to control rockburst and establishing mining strategy in high stress area，the Dongguashan Copper Mine has installed an ISSI miroseismic monitoring system in 2005. The system can timely monitor change of the state of stress or strain in rockmass induced by mining. The layout of the seismic monitoring system in Dongguashan Copper Mine is descried. Then the time-spatial distribution of seismic events in a period of time is analyzed. By using visual tools of JDI the relative convergence area of seismic events in initial mining district is delineated combining with the causes according to practical mining underground. Also，some methods of identifying dangerous of rock mass project in underground are proposed，which is verified by the actual events. According to research results，the working procedure to analysis of rock mass induced by mining based on microseismic monitoring technology in high-stress area is developed，which can provide a basis for safety of mine production.
|
|
Received: 01 September 2008
|
|
|
|
