南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2013年
z2期
93-95,99
,共4页
张贵民%韩凤来%张兴珏%田间%崔积家
張貴民%韓鳳來%張興玨%田間%崔積傢
장귀민%한봉래%장흥각%전간%최적가
南水北调%长距离输水暗涵%复杂边界条件%均匀流计算%模型验证
南水北調%長距離輸水暗涵%複雜邊界條件%均勻流計算%模型驗證
남수북조%장거리수수암함%복잡변계조건%균균류계산%모형험증
the South-to-North Water Transfer Project%water delivery covered culverts in long distance%complex boundary conditions%uniform flow calculation%model validation
南水北调穿越济南市区段采用无压暗涵输水,设计中采用明渠均匀流理论进行水力计算。由于暗涵边界条件复杂,局部断面发生变化,且存在多处弯道,为了验证均匀流计算方法的合理性,分别采用水工模型和非均匀流理论等方法进行验证。通过对输水暗涵几个具有代表性节点的分析,说明长距离无压暗涵输水,在局部断面发生变化的条件下,全线采用明渠均匀流理论进行水力计算是合理、安全的。
南水北調穿越濟南市區段採用無壓暗涵輸水,設計中採用明渠均勻流理論進行水力計算。由于暗涵邊界條件複雜,跼部斷麵髮生變化,且存在多處彎道,為瞭驗證均勻流計算方法的閤理性,分彆採用水工模型和非均勻流理論等方法進行驗證。通過對輸水暗涵幾箇具有代錶性節點的分析,說明長距離無壓暗涵輸水,在跼部斷麵髮生變化的條件下,全線採用明渠均勻流理論進行水力計算是閤理、安全的。
남수북조천월제남시구단채용무압암함수수,설계중채용명거균균류이론진행수력계산。유우암함변계조건복잡,국부단면발생변화,차존재다처만도,위료험증균균류계산방법적합이성,분별채용수공모형화비균균류이론등방법진행험증。통과대수수암함궤개구유대표성절점적분석,설명장거리무압암함수수,재국부단면발생변화적조건하,전선채용명거균균류이론진행수력계산시합리、안전적。
IttakesthefreeflowcoveredculvertsforwaterdeliveryintheJinanurbansectionoftheSouth-to-NorthWaterTransferProjectand thedesignduestotheresultofhydrauliccalculationaccordingtotheuniformflowinopenchannels.Becauseofthecomplexboundarycondition ofthecoveredculverts,variationofthecrosssections,andthechannelbends,itvalidatedthemodelbythehydraulicmodelandnon-uniformflow toverifythereasonabilityofthecalculationwiththeuniformflow.Itanalyzedthedatainseveralkeynodesandconcludedthatthehydrauliccal-culation using the free uniform flow is reasonable and safe in the covered culverts water distribution without pressure in long distance.