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《《南水北调与水利科技》:南水北调中线穿漳工程模型试验研究(李大志 郭炜 金中武 黄建成)(摘要)》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、《南水北调与水利科技》:南水北调中线穿漳工程模型试验研究(李大志郭炜金中武黄建成)(摘要) #TRS_AUTOADD_1219633415843{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋体}#TRS_AUTOADD_1219633415843P{MARGIN-TOP:0px;FONT-SIZE:12pt;MARGIN-BOTTOM:0px;LINE-HEIGHT:1.5;FONT-FAMILY:宋体}#TRS_AUTOADD_1219633415843TD{MARGI
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3、---JSON--{"":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"p":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"td":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","m
4、argin-bottom":"0"},"div":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"li":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"}}--**/摘要:漳河洪水峰高量大水流湍急,穿漳工程河段滩地宽阔无堤防,为保证工程安全并减少工程对防洪及河势影响,在河势分析基础上,进行了定床
5、模型方案试验,研究比较了涵洞式渡槽和倒虹吸两类5个方案,根据无工程河段水流特点以及工程的影响确定了工程控制点,并通过倒虹吸工程壅水程度与跨度敏感性分析,对工程方案以及工程跨度提出了建议,试验结果表明,工程后断面净河宽达到470m以上时,对设计洪水以及下游河势影响有限。
关键词:穿漳工程建筑物;定床模型;工程壅水
中图分类号:TV68;TV131.6文献标识码:B文章编号:1672-168301-0204-03
ModelStudyonCrossingZhangRiverinMiddle-RouteoftheSouth-to-NorthWaterTransferProje
6、ct
LIDa-zhi,GUOWei,JINZhong-wu,HUANGJian-cheng
(RiverResearchDepartmentofYangtzeRiverScientificResearchInstitute,Wuhan430010,China)
Abstract:Becauseofthehighfloodpeak,thelargedischargeandbigcurrentvelocityinZhangRiver,thereisnoembankmentinopenalluvialflattoassurethesafetyofcrossingprojec
7、tandreducetheprojecteffectoffloodcontrolandriverregime,Thefixedbedmodeltestisimplemented.5schemesoftheculvertandinvertedsiphontypesareresearchedandcompared.Accordingtothecharacteristicofstreamcurrentandtheeffectofcrossingproject,thecont