摘要
本文讨论了用于计算扩容对潮汐倾斜和应变影响的三种方法——有限单元法、小参数法、椭圆包体法。用这三种方法计算了蓝山湖地震扩容对潮汐倾斜和应变的影响。计算结果表明,不同理论计算方法所得结果基本相同,潮汐倾斜和应变在扩容过程中异常幅度有可能超过100％,再次证明了潮汐观测可作为地震预报的一种手段。
This paper described in detail three methods--finite element, small parameter and elliptical inclusion methods, which are sed to compute the effect of the dilatancy on tidal tilt and strain. Applied the above-mentioned three methods, the travel-time delays of seismic waves of the Lanshanhu earthquake are used to calculate the effect of the dilatant area of the Lanshanhu earthquake preparedness on the tidal respondence. The computations show that the results of various methods are basically same. The DETTS caused by the Lanshanhu earthquake eaceed 100 percent of the undisturbed tide. This once again proved that the tidal observation can be regarded as one powerful tool of earthquake prediction.
出处
《地震》
CSCD
北大核心
1991年第5期57-63,共7页
Earthquake
