综合监测技术在南窖沟泥石流协同预警中的应用  

Application of comprehensive monitoring technique on collaborative early warning of Nanjiao debris-flow

作　　者：翟淑花[1] 刘欢欢[1] 王云涛[1] 冒建[1] 曹颖[1] ZHAI Shuhua;LIU Huanhuan;WANG Yuntao;MAO Jian;CAO Ying(Beijing Institute of Geology,Beijing 100120,China)

机构地区：[1]北京市地质研究所,北京100120

出　　处：《南水北调与水利科技》2018年第S01期46-50,共5页South-to-North Water Transfers and Water Science & Technology

基　　金：北京市自然科学基金(8173055);北京市优秀人才培养资助(2014400617931G216)。

摘　　要：在分析北京市房山区南窖乡南窖沟地质环境背景及泥石流基本特征的基础上,建立了集雨量计、含水率仪、次声监测仪、泥位计等设备的泥石流沟综合监测系统,实现了泥石流全流域、全过程的多参数监测。以泥石流流域降雨、源地土体土壤含水率、泥位以及次声等信息作为主要预警指标,综合采用修正法、数值模拟法、雨洪法建立了南窖沟泥石流灾害预警临界值,实现了多设备互证的协同预警机制,相对于现有技术中的泥石流单阈值预警方法,可提高预警的可靠性。The geological condition and basic characteristics of Nanjiao gully are introduced,a comprehensive monitoring system are established including rain gauge,soil water monitoring device,infrasound monitoring equipments as well as mud level monitoring device,which realize overall monit oring and forecasting of the whole gully.Then,taking the rain runoff,soil water content,inf rasound pressure and mud level as the indicating index,a complex thresholds values are given by updat ing technique,numerical simulation and rain-flood method,w hich realize multi-device collaborative early warning of debris flow,and t he debris flow forecasting reliability is much more increased than the single-thresholds value method.

关 键 词：泥石流 监测 泥位 次声 土体含水率 临界阈值 

分 类 号：TU443[建筑科学—岩土工程]