摘要
瑞雷面波法是近几年应用于工程地质勘察中的一种有效勘察方法。文中首先采用频率空间域τ-p变换来提取瑞雷面波,它能有效压制假频和端点效应;其次采用相邻道计算频散曲线,能准确检测局部和小区域异常。使得在工程地质勘察中地质条件差时也能大大提高瞬态瑞雷面波勘探的可行性,并提高了纵、横向分辨率和精度。通过梅龙高速公路某段试验解译与钻探资料的对比分析,说明了本方法的有效性和实用性。
Rayleigh wave exploration has been effectively used in engineering geological exploration for a few years. This paper first uses the frequency-space domain τ-p transform to separate the Rayleigh wave and it can suppress false frequency and port effect effectively.Then calculates frequency dispersion curve of Rayleigh wave by adjacent two receive points. This method can exactly survey local and small area abnormity and enhance the feasibility of Rayleigh wave exploration in bad geological condition, and it increases the resolution and precision both in vertical and horizontal part. The tests on the stimulant theoretically seismic data and practicality data show that this method works effectively and practicability.
出处
《广东交通职业技术学院学报》
2010年第3期27-29,共3页
Journal of Guangdong Communication Polytechnic
关键词
瑞雷面波
频率空间域τ-p变换
相邻道
rayleigh wave
frequency-space domain τ-p transform
adjacent receive points
