摘要
被动源面波源于自然界和人类活动所产生的各种振动,通过分析被动源面波的频散特性可推断地下横波速度结构。介绍了被动源面波的特征及被动源面波勘探的基本流程;阐述了从被动源面波数据提取频散曲线的SPAC与F—K等两种方法,通过数字模拟对两种方法进行了对比;列举了采集被动源面波数据的技术要求;给出几个应用实例,说明其效果。
The shear wave velocity of subsurface can be estimated by analyzing the passive surface waves typically generated by cultural and natural sources.This article first introduces the passive surface waves and the processing procedure,and then utilizes the simulated passive waves to compare the FK and SPAC methods in deriving dispersion curves.It also discusses the general requirements of data acquisition and demonstrates some field examples.
出处
《物探与化探》
CAS
CSCD
北大核心
2010年第6期759-764,共6页
Geophysical and Geochemical Exploration
关键词
被动源面波
空间自相关法
频率—波数法
数字模拟
passive surface wave； spatial autocorrelation； frequency-wavenumber； simulation
