北京山区泥石流专业监测技术要求及实践

Technical requirements and practice of debris flow monitoringin the mountainous areas of Beijing

泥石流是北京山区主要突发地质灾害之一,虽然发育规模以中小型居多,但危险性很大,开展专业监测十分必要。科学选取监测对象、合理选择监测方法、监测设备类型和可靠的安装位置,明确监测技术要求,是泥石流监测预警的关键。根据北京市突发地质灾害监测预警系统(二期工程)建设的工作实践,在北京山区泥石流特征分析的基础上,总结得出泥石流监测对象选择、监测方法及设备、监测点位确定方法及技术要求等,并以小梁后沟印子峪泥石流专业监测实践为例,验证了上述原则、方法和技术的合理性。研究成果可为泥石流监测预警的前期选点工作提供思路方法和借鉴参考。

Debris flow is one of the main sudden geological hazards in the mountainous areas of Beijing.The development scale of debris flow is mostly small and medium-sized,but it is really dangerous.Therefore,it is necessary to carry out professional monitoring.Scientific selection of monitoring objects,reasonable selection of monitoring methods,types of monitoring equipment and reliable installation position,and clear monitoring technical requirements are the keys for debris flow monitoring and early warning.Based on the work practice of Phase I and Phase II of Beijing sudden geological hazards monitoring and early warning system,the authors in this paper summarized the contents of debris flow monitoring object selection,monitoring methods and equipment,methods and technical requirements for determining monitoring points,through the analysis of characteristics of debris flow in the mountainous areas of Beijing.Besides,the rationality of the above principles,methods and techniques is verified by taking the professional monitoring practice of Yinziyu debris flow in Xiaolianghougou as an example.The Relevant work can provide ideas and reference for early point selection of debris flow monitoring and warning.