基于Arcgis和AHP的湖北省内高铁(城铁)线路雷电灾害风险区划

通过对湖北省内高铁(城铁)沿线相关气象、社会经济、高铁(城铁)里程与运力、地形与水系等相关资料进行离差标准化处理,采用层次分析法(AHP),选取雷电强度与频次、河网密度、海拔高度、高铁(城铁)里程与运力、人均GDP、雷电预警能力等因子构建了湖北省内高铁(城铁)线路雷电灾害风险区划模型,并使用Arcgis10绘制了湖北省内高铁(城铁)线路雷电灾害风险区划图。综合区划结果表明,湖北省内高铁(城铁)线路雷电灾害风险总体呈东部高西部低的特征,武冈城铁、武九铁路全线、京广高铁武汉站到乌龙泉东站为3个高危险区;武十城铁枣阳站至十堰北站、京广高铁乌龙泉东站以南湖北段全线、武咸城铁全线、沪汉蓉高铁汉口站以东湖北段全线为4个次高危险区。高危险区段与雷电多发区位置基本一致。研究成果对于湖北铁路运输管理部门科学防御雷电灾害和气象部门开展气象服务具有一定的参考作用。

Lightning Disaster Risk Zoning on the High-speed Railway(City Railway)lines in Hubei Province Based on Arcgis and AHP

Lightning is an important meteorological factor affecting the safe operation of railway, and it is of great significance to scientifically assess the distribution of lightning disasters along railway lines. Through the relevant meteorological, socio-economic, high-speed railway(city railway) mileage and capacity, terrain and water system along the Hubei high-speed railway(city railway) and other related information to standardize the treatment, using the hierarchical analysis method(AHP), Selecting the factors such as lightning strength and frequency, river network density, altitude, high-speed railway(city railway) mileage and capacity, per capita GDP, lightning early warning capability, etc. to construct the lightning disaster risk zone model of high-speed railway(city railway) line in Hubei Province, and the use of Arcgis10. The results of the zoning show that the risk of lightning disaster on the high-speed railway(city railway) line in Hubei is generally characterized by high-western high-risk, Wuhan-Huanggang City railway, Wuhan-Jiujiang Railway, Beijing-Guangzhou High-speed Railway Wuhan Station to Wulongquan East Station is 3 high-risk zones;Wuhan-Shiyan Zaoyang station to Shiyan north station, Beijing-Guangzhou high-speed rail Wulongquan East Station south of the Hubei section of the whole line, Wuhan-Xianning City railway line, Shanghai-Wuhan-Chengdu high-speed railway Hankou station east of the Hubei section of the whole line of the four sub-high danger zone. The location of the high-risk section is basically the same as that of the lightning-prone area, and the research results have a certain reference effect for the Hubei railway transportation management department to carry out meteorological services for the scientific defense of lightning disasters and meteorological departments.