以冬瓜山微震监测的数据为基础,结合开采、地质条件等因素,运用统计学和线形拟合方法,研究了开采活动与矿山地震活动的关系特征。其结果发现:累积矿震事件数与累积采掘体积、爆破药量存在着双对数线性的正比例关系;而累积矿震能量却与开采体积存在着斜率为负的双对数线性关系;较大矿震事件主要发生在开采爆破活动之后的时间内,震级大于0的矿震事件在时间上要超前爆破事件,矿震活动在开采活动之后呈现从强到弱再从弱到强的变化过程。该结果对硬岩金属矿山的矿震活动研究有一定的参考价值。
Based on the data of micro-seismic system of Dongguashan and combining the exptoltlng anu geological factors, this paper makes a study of the relationship between exploiting activity and mining-induced seismicity by using statistic and linearization methods. The result shows that there is a logarithmic linear direct proportion relationship between cumulate seismic events and cumulate exploiting volumes and detonator capacity, and that there is an inverse proportion relationship between cumulate energy and cumu- late exploiting volumes. Large events mainly happen after the blasting. Events with magnitude being more than zero happen before the blasting events. After blasting, mining-induced seismicity experiences a strong-weak-strong process. These achievements provide some referringvalue for the study of mining-induced seismicity of hard-rock metal mines.