摘要
边界元方法(B.E.M)是继有限元方法之后发展起来的数值方法。本文将边界元方法应用于局部边界效应的研究,由于该法较之以往所采用的有限元方法具有更多的优点,从而方便地实现了地形-空腔效应的联合模拟,也使得空腔、地形、断裂构造效应的研究更加方便。本文的模拟结果论证了利用局部边界对区域形变异常的放大作用来捕捉地震前兆现象的可能性,并为制定和完善定点形变台站的观测规范提供一些理论依据。
In this paper, Boundary Element Method (B. E.M ), which is a new method of numerical calculation developed after Finite Element. Method ( F. E. M ), is emploied to study the effects of the local boundaris. Having more advantages compared with the F.E. M adopted in the past researches, this method makes the joint simulation of a topography and a cavity possible, and also makes the simulations of the effects of cavities, topographies and tectonic faults more convinient. The simulation results verify the possibility of using magnifying effect of some local boundaries on regional deformation anomalies to seize earthquake precursors, and provides considerable theoretic basis for working out or improving the observing specification on a deformation observatory.
出处
《地壳形变与地震》
CSCD
1989年第4期16-28,共13页
Crustal Deformation and Earthquake
