摘要
瑞雷波技术已经广泛用于工程物探和质量检测中,但对软弱地层的探测尚缺乏系统深入的研究。本文采用有限差分软件FLAC3D对横向存在软硬分区、表层软弱及软弱夹层3种地层模型作数值模拟,分析了相应地层模型中瑞雷波时域信号传播特征,得出了传播规律。为工程技术人员现场快速时域信号分析提供了帮助。
Rayleigh wave technique is widely used in engineering geological exploration and engineering quality testing recently, but testing of weak stratum is not studied thoroughly. Rayleigh wave propagation in weak stratum models（three models of the earth＇s surface with soft and stiff area, the earth＇s surface with weak layer and weak interlayer） are studied comprehensively by using finite difference software FLAC3D, and the Rayleigh wave propagation characteristics and propagation disciplinarian in weak stratum models are discussed, which are helpful for engineers to quickly analyze the characteristics of time domain signal at field.
出处
《公路交通技术》
2005年第5期57-62,共6页
Technology of Highway and Transport
基金
西部交通建设科技项目"声波技术在地基工程评价中的应用"(200131800074)
关键词
瑞雷波
有限差分软件
时域信号
传播特征
Rayleigh wave
finite difference software
time domain signal
propagation characteristic
