【摘要】 应用地球物理学方法研究了１９９８年６～１２月间鹤岗富力煤矿－２４０五层冲击地压的地震记录．冲击地压地震震级为ＭＬ１．０～ＭＬ２．５，地震波优势频率为０．６～１．８Ｈｚ，释放能量为（２．１２～１９．９９）×１０　６Ｊ，地震矩为（１．９１～５．８７）×１０１３Ｎｍ．应力降为０．２～０．６ＭＰａ，构造环境应力值为１．１２～２．４９ＭＰａ．经地震学研究和宏观调查结果判断，冲击地压属岩体断裂冲击类型．更多还原

【Abstract】 geophysical method is used to study seismographic records of percussion ground pressurein Hegang-Fuli coal mine from June to December in 1998. The results show that the range forearthquake magnitude of the percussion ground pressure is ML1.0~ML2.5,that for predominantfrequency is 0.6 ~1.8Hz, for releasing energy is (2.12~19.99) 106J, for seismic moment is(1.91~5.87) 1013Nm, for stress drop is 0.2~0.6MPa and for the ambient shear stress value is1.12~2.94MPa. Based on the study the percussion ground pressure is considered as a kind ofrock breaking.更多还原