摘要
本文对塌方矿区的地质构造分析表明,矿井的塌方地震与矿区的局部地质构造有密切的关系。为了减少矿井塌方地震,首先应把矿区地质构造研究清楚,在近断层采区加强加固。通过对煤矿塌方地震资料的初步分析表明,在较大的塌方地震发生之前,可能有以下异常出现:小塌方地震次数增多,∑N-t 曲线、∑E^(1/2)-t 曲线、∑L-t 曲线及 No.-∑△t 曲线急剧变化。这些异常变化一般出现在较大塌方地震前12—70天,据此有可能对较大塌方地震做出预报。
It is shown by the analysis of geological structure that the tremorsinduced by mine col- lapse closely relate to the local geological structure of mine area.In order to reduce mine tremor,first,the geological structure of mine area should be researched clearly,second,the exploitation area around fault is strengthened and fixed. It is shown by the preliminary analysis of data from mine tremors that it is possible that the frequence of small mine tremors increase,and the curves of ∑N-t,∑E^(1/2)-t,∑L- t and №-∑△t speedily vary prior to the larger mine tremors.These anomalous are observed about 12—70 days before the larger tremors.Thereby,it is possible to predict the larger mine tremors.
出处
《地震学刊》
CSCD
1993年第3期1-5,共5页
Journal of Seismology
