城市洪水灾害的模拟与风险管理对策的分析——以淮南市为例

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1、people，factoriesandfarmlandinthesouthareaofHuaiRiverinHuainan，ifsomebigfloodappears，itwillbringbadimpactonpeople’Slifeandthesafetyofproperty．ThispaperusesHEC·RASmodel，HEC-GeoRASmoduletosimulateovertoppinginundationunderthedifferentdesignfloodanddikeb

2、reakinundateunderdifferenttime．Furthermore，thispaperalsointroducestheconceptof‘'UrbanFlood鼬skManagement”thatissuggestedbyWMO(WorldMeteorologicalOrganization)．Thispapermainlycomprisesasflollowing：First，manyliteraturesrelatedtofloodsimulationalecollect

3、edandresearchedbothathomeandabroad．Accordingtothesurvey,thetechnologymethodsoffloodsimulationincludetwodirections：self-developedsimulationplatformandtheuseofsimulationsoftware，forexample：Delft，Mike11，Mike21，HEC·RAS，etc．HEC—RASisnotonlyafreesoftware，a

4、ndthecombinationofHEC—GeoRAStosimulateinundationinArcGISisnotonlyprovedtobefeasible，butinrecentyearsanumberofauthoritativeorganizationsabroadsimulatedfloodscenariobythismeans，soitCanbesaidthatthetechniquehasacertainlevelofresearch．．Secondly,theprinci

5、ples，functionand·UseofHEC-RASmodelandHEC—GeoRASmoduleareintroduced，andtheroleofArcGISinfloodsimulation．Thirdly,thispapersimulatesflooddisasterofHuainanCityintheGISenvironment，itincludestwoaspects：ononehand，thispapersimulatesovertoppinginundationunder

6、existingworkconditionsanddifferentcyclesofdesignflood(40，60and100-years)，andgetsdifferentdesignwaterlevelofcross-sections，thescopeofovertoppingflood,submergenceandotherdata；secondly,ontheotherhand，thispapersimulatesfloodcausedbydikebreakofTianjiaanDu

7、anunderdesignfloodⅡllI1．1．1我国历年洪水概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯11．1．2河流洪水灾害的种类⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31．1．3城市洪灾的成因⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯51．1．4城市洪水灾害的影响⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．6第二节国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一8第三节主要研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯14第四节理论方法和技

8、术路线⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯141．4．1理论方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯141．4．2技术路线⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．16第二章娅C．RAS软件和脏C．GeoRAS模块⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯19第一节HEC．RAS软件⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．19第二节HEC．GeoRAS模块⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯30第三节GIS平台上的模拟分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．30第三