基于实时降雨量监测的地质灾害警示防范信息系统

Establishment of a real time warning and information system of geological hazards based on rainfall monitoring

目前,群测群防和专业监测防灾体系存在监测不及时,手段单一且覆盖面小等问题。为提升监测实时性及信息化程度,研究基于实时降雨量监测的地质灾害警示防范技术。该技术基于1∶10000地质灾害详细调查,划分警示防范区,确定区内降雨量阈值,通过降雨量实时观测、声光报警、物联网通讯等技术,实现地质灾害实时警示防范功能。长兴村地质灾害警示防范应用实践表明,该技术使得地质灾害监测覆盖面更广,预警实时性更强;地质灾害警示防范信息管理系统提高了地质灾害监测信息化程度,实现了对警示防范区的有效管理;降雨量预警阈值可根据实际运行情况进行修正,从而提高阈值可靠性。

At present,group measurement and group prevention as well as the professional monitoring and disaster prevention system have problems that monitoring is not in time,means are single,coverage is small,etc. To enhance the real-time and informationization degree of monitoring,warning and prevention technology of geological hazards based on rainfall monitoring in real time is studied. On the basis of the detailed geological hazard investigation on a scale of 1 ∶ 10000,the warning and prevention area is divided,and the rainfall threshold is confirmed. In addition,the function of real-time warning and prevention for geological hazards is achieved by real-time rainfall observation,acoustooptic early warning and networking communication. The application of warning and prevention for geological hazards in Changxing village indicates that the coverage turns to be wider and warning becomes more real-time. Besides,the information management system for geological hazard warning and prevention enhances the informatization level,and succeeds in managing the warning and prevention area effectively. Moreover,the rainfall warning threshold can be revised according to the actual operating conditions to improve the reliability of the threshold.