低地坪高潮位地区的雨水管道淹没出流计算

张雨飞1何亦森1邝敏毅2(1,510630;2,510060)根据水力学理论,阐述了重力流雨水管道淹没出流的水力计算方法,并结合工程实例,介绍了低地坪高潮位地区雨水管道淹没出流的简化计算方法提出低地坪高潮位地区的重力流雨水管道应优先采用小坡降低流速大管径系统,以尽可能降低水位壅高对管道的不利影响低地坪高潮位雨水管道淹没出流计算SubmergeddischargecalculationforthestormsewerinlowterraceandhightidelevelareaZhangYufei1,HeYisen1,KuangMinyi2(1.GuangzhouBranch,ChinaHuaxiEngineeringDesign&ConstructionCo.,Ltd.,Guangzhou510630,China;2.GuangzhouUrbanPlanning&DesignSurveyResearchInstitute,Guangzhou510060,China)Abstract:Basedonhydraulics,thispaperdemonstratedthesubmergeddischargecalculationmethodforthegravitystormsewer,andintroducedthesimplifiedthesubmergeddischargecalculationmethodforthegravitystormsewerinlowterraceandhightidelevelareacombinationwiththepracticalengineeringprojects.Itwassuggestedthat,inlowterraceandhightidelevelarea,thegravitystormsewershouldemployflatslope,slowflowrate,andhugepipediametersystempreferentially,andthebankedupwaterlevelshouldbereducedasmuchaspossiblesoastoalleviatethedamagetopipes.Keywords:Lowterrace;Hightidelevel;Stormsewer;Submergeddischarge;Calculation0,,,,(GB50014!2006)4.1.10:∀,,#,,,;,,():,,,,,,,,,,11.1,,,,∀#,H(,1),hf1H()v=CRi,i=hflv=QA,:v=QA=CRi=CRhfl,:hf=v2C2Rl=Q2A2C2Rl=H,C=1nR1/6R=A,:H=hf=410/3n2Q22d16/3l∃10294n2Q2ld100016/3(1)hf!!!,m;Q!!!,m3/s;C!!!;R!!!,m;A!!!,m2;!!!,m;d!!!,mm;v!!!,m/s;i!!!;n!!!;l!!!,m(1),,,,(1)1d/mmA/m2v/m/s/mR/mil/mH/m16000.2832.8291.8850.150.016981001.6976327000.3852.0792.1990.1750.007461000.7461038000.5031.5922.5130.20.003661000.3660249000.6361.2582.8270.2250.001951000.19529510000.7851.0193.1420.250.001111000.11134(1)1,,,,,,1.2,,(),,(1)H=hf=il,,H=hf=il,28hm2,430m,215m,2~2.5m(),1.2m,201.60m,,,,,2,,230290m,1670m,(),2,072,(),2()123/hm20.30.71.1/m3/s0.0790.1840.289/m5010070i0.0020.00120.001/mm400600700/m3/s0.0930.2130.293H/m0.1000.1200.0703()123/hm20.30.71.1/m3/s0.0790.1840.289/m5010070i0.0070.0090.006/mm300400500/m3/s0.0810.1980.292H/m0.3500.9000.420,()0.3~0.5m,,,,,,,,3,,,,参考文献1,..:,20002,,..:,19953GB50014!2006%:5106002117:13829768808Email:[e-mail]:20101104