摘要
本文利用矿山炮采激发的地音记录,提取有关矿山应力变化的信息。文中介绍了激发地音的记录系统和处理系统,并通过对城子煤矿的激发地音资料,获得应力降、卸载范围、主频率及卸载时间等参量。这些参量为安全开采提供了科学依据。矿山激发地音的分析研究工作,为地震预报的深入探索,给了很有价值的启发。
This paper collected the information about stress variation in the mine by using records of earth sound excited by explosion mining. The recording and processing systems of excired earth sounds were introduced in the paper and also obtained parameters of stress drop, unloading range, primary frequency and unloading time. These papameters provided scientific basis for safe mining. The analysis and reseach of the excited earth sound of the mine gave very valuable inspirations for the deep-going exploration of earthquake prediction.
出处
《地震》
CSCD
北大核心
1990年第2期73-79,共7页
Earthquake
