吉林敦化泥石流灾害区域预警系统研究  

Study on regional warning system for debris flows in Dunhua city of Jilin province

作　　者：张熠斌 王延亮 刘传深 王立春 朱宝臣[2] 齐斌[2] 宋金红[3] 

机构地区：[1]吉林省地质环境监测总站,吉林长春130021 [2]敦化市国土资源局,吉林敦化133700 [3]吉林农业大学资源与环境学院,吉林长春130118

出　　处：《中国地质灾害与防治学报》2012年第4期11-15,共5页The Chinese Journal of Geological Hazard and Control

摘　　要：本文通过总结前人关于地质灾害预报预警的研究,选取敦化地区近10年来发生灾害的泥石流沟为例,基于功效系数法,建立了一套地质环境条件与气象因素相耦合的泥石流预报预警流程,并基于GIS技术,运用C#和VB语言编码,设计开发了敦化典型泥石流地质灾害自动预警系统。系统以地质环境条件、前期有效降雨量和当日降雨量为综合评价对象,能较准确预测泥石流发生概率,预报精度较高;多线程、XML和组件式软件开发等技术的应用,提高了系统自动预警的速度,增强了系统的灵活性、重用性和开放性,便于维护。This paper summarizes the previous research on geological disasters, choses the debris flow that happened in recent 10 years of Dunhua as experimental data, proposes a method for forecasting and warning of debris flows about geological environment condition and meteorological factors based on the efficacy coefficient method, and using C# and VB to code,designes and developes an automatic warning system for typical debris flows of Dunhua city based on GIS. The system,with the geological environment condition, antecedent effective rainfall and the daily rainfall as the comprehensive evaluation object, can objectively forecast the debris flow occurrence probability, with high prediction accuracy. Based on the multi thread technology, XML technology and component technology, it improves the speed of automatic warning system, increases flexibility, reusability and openness of the system, and is easy to maintain.

关 键 词：泥石流 功效系数法 自动预警系统 吉林敦化 

分 类 号：P642.23[天文地球—工程地质学]