摘要
本文将地震学中震源参数与速度构造同时反演的方法用于反演工程场地的速度构造。反演过程归结为求解非线性最小二乘问题,在使用阻尼最小二乘法求解中提出了一种新的选取阻尼因子的算法。用于反演速变构造的模型为水平成层或二维模型,后者反映了地下构造的横向非均匀性。通过地震记录及爆破数据的实际反演验证了方法的可行性和适用性。
A method for inversion of source parameters and velocity structure in seismology is used to inverse the velocity structure of engineering site in this paper. The inverse process is equivalent to solve a nonlinear least square problem and a new way to choose damping factor is presented in utilizing the damping least square method. The model of velocity structure is stratified. The lateral heterogeneity of the underground structuremay be consider in the model The feasibility and adaptability are testified by actual inversions of carthquake records and explosion data.
出处
《地震工程与工程振动》
CSCD
北大核心
1991年第3期1-17,共17页
Earthquake Engineering and Engineering Dynamics
