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1、第5期總第195期浙江水利科技No.5T0talNo.1952014年9月ZhejiangHydrotechnicsSeptember2014江陰水道桃花港段長江岸線綜合整治工程對河勢的影響研究馮源,范北林。劉同宦。王敏(長江科學(xué)院河流研究所,湖北武漢430010)摘要:桃花港段長江岸線綜合整治工程位于長江下游江陰水道進(jìn)口段南岸,岸線建有大量的石油、化工碼頭。此段水面開闊,灘地蘆葦叢生,岸線呈內(nèi)凹的平面形態(tài),泥沙易于落淤,不利于碼頭前沿水深及河勢穩(wěn)定。采用潮汐河工模型試驗與二維水流潮汐數(shù)學(xué)模型計算相結(jié)合的方法,研究3個不同岸線整治工程方案對河段河勢的影響。通過研究認(rèn)為:
2、不同方案工程興建后,對工程上下游河段水位、河道主流區(qū)流速場及祿安洲分流比影響均較小。工程局部區(qū)域的流態(tài)發(fā)生了明顯的變化,原灘地范圍內(nèi)的回流消失,工程外側(cè)水流趨于平順。從綜合整治效果來看,推薦方案(方案3)增加了碼頭前沿及后方的疏浚工程,既能滿足岸線平順的需要,也能滿足該段深水岸線開發(fā)利用需求,對地方社會經(jīng)濟(jì)發(fā)展更加有利。關(guān)鍵詞:江陰水道;岸線綜合整治工程;河工模型;河勢中圖分類號:TV85文獻(xiàn)標(biāo)識碼:A文章編號:1008.701X(2014)05—0047—05TheInfluenceofTaohuaPortSectionRegulationProjectonRiv.e
3、rRegimeFENGYuan,F(xiàn)ANBei—lin,LIUTong—huan,WANGMill(DepartmentofRiver,YangtzeRiverScientificResearchInstitute,Wuhan430010,Hubei,China)Abstract:TheTaohuaPortsectionregulationprojectoftheYangtzeRiverislocatedinthelowerYangtzefiver,southbankoftheJiangyinchannelinletsection.Alongwithalotofoilan
4、dchemicalwharfs,thissectionisOpenwaterandfully—growwithreeds.Thecoastlineisaconcaveshape,andthesedimentispronetodeposition,whichisnotconducivetothestabilityofwharfapronandriverregime.Combiningwithtidalrivermodeltestandtwo—dimensionalmathematicalmodeloftidalcurrentsmethod,threediferentreg
5、ulationprojectsfortheinfluenceoffiverregimeareresearchedinthearticle.Throughresearchthatdiferentschemeofengineeringconstructionhaslittleinfluenceonthewaterlevelandflowfieldofupstreamanddownstream,andthesplitratioofhlanIslandisstability.Theflowpatternswhichnef1.Ftheengineeringareashaschan
6、gedsignificantly,therecireulationoftheorigi~beachdisappeared,theoutermainstreamtendstostraight.Comprehensiveeomparationfromtheregulationefect,recommendedprogram(OptionIII)increasedthedredgingengineeringwhichnearthethewharfs,tomeetboththeneedsofsmoothcoastlineandimprovedeepwatercoastlined
7、evelopment,whichbringmolefavorabletotheutilizationoflocalsocialandeconomicdevelopment.Keywords:Jiangyinwaterway;shorelineregulationproject;fivermodel;fiverregime自古以來,人類就有沿水造城、臨水而居的傳統(tǒng),沿興利除害的需要,人們越來越頻繁地對自然界的河流進(jìn)行河湖的洪泛平原和階地因其優(yōu)越的水土資源條件,成為人各種不同規(guī)模的改造。時至今日,世界上已很少有幾條河類開發(fā)利用的首選場所。隨著