Infrasound monitoring and early warning of debris flow along montanic railway line
Wang Liang-wei · Shengxue jishu · 2012
On the basis of knowing the domestic and foreign methods and the techniques of infrasound monitoring about debris flow,the article discusses the principle and method of designing the DBF-IS infrasound monitoring instrument of debris flow.This instrument mainly monitors and collects the characteristic frequency of the debris flow when it occurs,and also monitors and collects the information about the amplitude and the duration.The instrument is easy to be installed and it is fit for debris flow monitoring and warning along montanic railway line.The DBF-IS infrasound monitoring instrument consists of the infrasound component terminal and the central computer system.The monitoring terminal can send out the disaster warning and transmit the information at the same time.Central computer system achieves monitoring point's parameter and information management,data communication,data processing and early warning function of debris flow.Setting up the instrument along montanic railway line can locate the specific position where the debris flow would occur and estimate its scale.According to the observed infrasound information,the early warning signals can be sent out to the relevant railway departments in time.