摘要
针对城市复杂环境干扰且常规物探方法无法有效进行作业特点,本文重点分析了城市环境的振动噪声特征,同时以面波理论为基础分析了城市环境振动噪声在瞬态面波与被动源面波中的表征的,认为可通过有效方式将环境噪声作为有效信号进行利用.结合相关分析,本文在某城市环境进行了实际数据采集,对不同工况下环境振动干扰进行了分析,认为多重强干扰情况下无法将环境振动模拟为单一虚拟震源,需结合复杂环境信号传播特征进行合理的观测系统布置,同时采用合理的分析方式压制干扰,以获取合理的地层波速结构.结合上述分析方式,本文在城市强振动环境进行了应用分析,并结合实际钻孔资料对获取的波速结构合理性进行了分析.
In geophysical exploration operations in cities,industrial interferences such as electromagnetic interference and vibration interference are very complicated,and conventional geophysical detection methods cannot perform operations effectively.This paper focuses on the distribution characteristics of vibration interference in cities.Based on surface wave theory,this paper analyzes the characterization of urban environmental vibration noise in transient surface waves and passive source surface waves,and believes that environmental noise can be used as an effective signal in an effective way.Combined with relevant analysis,this paper analyzes the actual data using vehicle vibration interference in a city water conservancy project.At the same time,the wave field propagation analysis is carried out for complex vehicle vibration interference under different working conditions.In this paper,virtual source simulation can not be effectively carried out in the presence of multiple strong vibration interference signals.It is necessary to combine the propagation characteristics of complex interference signals to make a reasonable observation system arrangement,and use reasonable analysis methods to suppress interference to obtain the correct formation velocity structure.Based on the above analysis,this paper uses the vehicle vibration noise in the hydraulic engineering to carry out related applications and compares it with the borehole.
作者
姜文龙
涂善波
何效周
马若龙
JIANG Wen-long;TU Shan-bo;HE Xiao-zhou;MA Ruo-long(Yellow River Engineering Consulting Company Limited,Zhengzhou 450003,China)
出处
《地球物理学进展》
CSCD
北大核心
2020年第4期1557-1564,共8页
Progress in Geophysics
基金
国家重点研发计划课题“长距离线性工程一体化智能检测技术与装备研发”(2018YFC0406904)资助。
关键词
面波
被动源
传播方向
振动噪声
Surface wave
Passive source
Propagation direction
Vibration noise
