中国矿震受区域应力场影响的探讨

DISCUSSION ON ROCKBURST INFLUENCED BY REGIONAL STRESS FIELD IN CHINA

对中国矿震受区域应力场影响问题,探讨了矿震与固体潮之间的相关性,发现矿震发生与月球固体潮有较好的相关性;探讨了矿震与其附近区域天然地震在时间上的相关性,发现天然地震较矿震具有滞后性;探讨了矿震空间分布规律,发现在平面分布上发生矿震的矿井也属于天然地震的多发地带,而且几乎都分布在构造活动性强的地震带内;在深度分布上,存在着发生矿震的临界深度。矿震的发生受区域应力场的影响,区域应力场是影响矿震发生的重要因素。

Rockburst influenced by the regional stress field is discussed. The correlation between rockburst and the solid tide has been discussed. The results show that rockburst occurrence has good correlation with the lunar solid tide. The correlation between rockburst and the regional natural earthquake has been analyzed： and it is found that the occurrence time of natural earthquake lags behind that of rockburst. The space distribution laws of rockburst have been considered. In the plane distribution, rockbursts are seen to locate in the earthquake-prone zones, and they are almost distributed in the earthquake zones of strong tectonic activities. There is a critical depth of rockburst occurrence in the depth distribution. The regional stress field is the one of important factors that affect rockburst occurrence.