{"refrec":{"BRefID":405874,"RR":"<b>Vereecken, H.; Vanderkimpen, P.; Visser, K.P.</b> (2025). Debietmeting in kader van afijking gerenoveerde stuw Sint-Baafs-Vijve . Versie 4.0. <i>WL Rapporten</i>, 23_078_1. Waterbouwkundig Laboratorium: Antwerpen. VI, 18 pp. <a href=\"https://dx.doi.org/10.48607/306\" target=\"_blank\">https://dx.doi.org/10.48607/306</a>","BEntID":403669,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". Versie 4.0. <i>WL Rapporten</i>, 23_078_1. Waterbouwkundig Laboratorium: Antwerpen.  VI, 18 pp. <a href=\"https://dx.doi.org/10.48607/306\" target=\"_blank\">https://dx.doi.org/10.48607/306</a>","DocTypID":13,"DocType":"Reports","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Vereecken, H.; Vanderkimpen, P.; Visser, K.P.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Vereecken, H.; Vanderkimpen, P.; Visser, K.P.","Englishabstract":null,"AbstractOtherLang":"In Sint-Baafs-Vijve langs de Leie zijn de 2 bestaande stuwen, van het type hefschuif met klep, &nbsp;gerenoveerd. Er zijn 2 formules bepaald om aan de hand van de stuwstand, het op- en afwaartse &nbsp;waterpeil en debietscoëfficiënten het debiet te bepalen dat over en/of onder de stuw passeert: &nbsp;een overstortformule over de klep (Qklep) en een onderstromingsformule wanneer het water onder het &nbsp;segment stroomt (Qseg). Aan het Hydrologisch Informatiecentrum van het Waterbouwkundig &nbsp;Laboratorium (WL-HIC) werd gevraagd om een debietmeting uit te voeren om de gebruikte &nbsp;overstortformule te controleren en daarbij te adviseren rond de voorgestelde debietscoëfficiënten. &nbsp;Tegelijk werd gevraagd om de inlaat van de vispassage te bemeten en ook de goede werking van de &nbsp;schuif die het toegevoegd debiet in de vispassage regelt te controleren. Vooraf aan deze metingen werd &nbsp;met RTK-gps een controle uitgevoerd van de gemeten waterpeilen en de stuwhoogtes.<br>&nbsp;In dit rapport wordt enkel gefocust op de debieten die over de klep stromen (overstortformule) &nbsp;aangezien de condities tijdens de metingen een controle van de onderstromingsformule niet toelieten. &nbsp;Dit wordt in het voorjaar van 2025 als de debietomstandigheden het toelaten nog extra gecontroleerd en later als addendum toegevoegd.<br>De op 3/10/2024 uitgevoerde debietmetingen wijken algemeen slechts 6% af van de berekende debieten &nbsp;met een standaard coëfficiënt van 1,86. Om het berekende debiet toch zo goed mogelijk te laten aansluiten &nbsp;bij de uitgevoerde terreinmetingen, adviseren we om de debietscoëfficiënt te laten variëren in functie van &nbsp;de klepstand, waarbij we bij de hoogste klepstanden eerder vertrekken van de standaard coëfficiënt &nbsp;van 1,86 die dan toeneemt tot een waarde van 2,05 bij klepstand van 7,80 mTAW tot 7,50 mTAW, om &nbsp;nadien bij de laagste klepstand terug naar de standaard coëfficiënt te evolueren van 1,86.<br>De debietmetingen ter hoogte van de inlaat van de vispassage tonen aan dat er gemiddeld bij een &nbsp;opwaarts streefpeil van 8 mTAW wel degelijk ongeveer 0,9 m³/s door stroomt en dat deze inlaat dus &nbsp;goed gedimensioneerd is met een debietscoëfficiënt van 0,7. De metingen bevestigen dat voor de lagere &nbsp;waterpeilen eerder een coëfficient van 0,7 a 0,75 geschikt zal zijn, voor de hogere peilen eerder 0,8 a &nbsp;0,85.<br>De debietmetingen ter hoogte van het kanaal waar het toegevoegd debiet wordt ingelaten via een &nbsp;regelschuif, om zo de sterkte van de lokstroom afwaarts mee te bepalen, tonen aan dat er gemiddeld &nbsp;per schuifstand ongeveer 1 m³/s extra toegevoegd debiet doorstroomt en dat deze regelschuif dus goed &nbsp;gedimensioneerd is.","BibLvlCode":"MS","StandardTitle":"Debietmeting in kader van afijking gerenoveerde stuw Sint-Baafs-Vijve ","OrigTitleLangCode":"nl","OrigTitleLangCodeExtended":"dut","OrigTitleLangID":41,"DateLastModified":{"date":"2026-04-22 01:42:02.299298","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Debiet; ijking","OtherDescriptors":null,"Notes":null,"AnaPub":null,"MonPub":2025,"DateUpdate":"2025-04-11","DateCreate":"2025-02-26","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":0,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":null,"monrec":{"MonID":405874,"ISBN":null,"PubliDate":2025,"IssueDate":null,"Volume":"23_078_1","Issue":null,"Pagination":"VI, 18","Place":"Antwerpen","Edition":"Versie 4.0","BRefXtra":null,"BRefXtraRR":null,"SerID":24938,"SerRR":"WL Rapporten. 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