Morfologische problemen rond bochtverbeteringen ... - TU Delft

Morfologischeproblemen rondbochtverbeteringenin de Waal!"#$%&''()'(#*!+

M.J. van Reen

,-./0110

Morfologische problemen rond bochtverbeteringen in de Waal Q3074 mei 2002Afstudeerverslag

WL | Delft Hydraulics Voorwoord

Voorwoord

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VCTC/93=/(--=/&-:42J/,-./0110

mei 2002 Q3074 Morfologische problemen rond bochtverbeteringen in de WaalAfstudeerverslag

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WL | Delft Hydraulics Samenvatting 3

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Samenvatting 4 WL | Delft Hydraulics


WL | Delft Hydraulics 1 – 1

1 Inleiding

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1 – 2 WL | Delft Hydraulics

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Probleemstelling

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Doelstelling

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Probleemafbakening

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2 Morfologische bochtverschijnselen

2.1 Inleiding

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2.2 Bocht zonder bodembescherming

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2.3 Bocht met bodembescherming

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Vaste laag

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3 Beschrijving van de bochten

3.1 Inleiding

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3.2 Erlecom (bodemkribben)

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3.3 Nijmegen (vaste laag)

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3.4 Sint Andries (vaste laag)

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3 – 1 0 WL | Delft Hydraulics



4 Analytische berekeningen

4.1 Inleiding

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4.2 Maximale diepte naast vaste laag

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Dwarsdoorsnede bodem

0

1

2

3

4

5

6

7

8

9

1750180018501900195020002050

afstand vh middelpunt van de bocht

Wat

erdi

epte

bij

Q=

1520

m3 /s

Berekend dwarsprofiel

Gemiddeld dwarsprofiel thv kmr 927(1999 t/m 2001)

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Ontgrondingsdiepte t.o.v. bodemtransport

0

2

4

6

8

10

12

0.00E+00 5.00E+05 1.00E+06 1.50E+06 2.00E+06 2.50E+06

Bodemtransport per jaar [m3/jaar]

Die

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t va

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[m

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4.4 Discussie

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5 Analyse met behulp van ArcView

5.1 Inleiding

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5.2 Dimensies ontgrondingen

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S.>/7-/3=3:L5-/.5/;-D86.B/;-,33B2/93=/7-/[email protected]/,6:2.D-3,/G-.:.=;-=C/&-/[email protected].=;:-D-3,/G-.:.=;-=/M93=/9<<8/^bbbN/E.>=/D6.2-=/D-5@A<6F.=;/;-:32-=/93=F-;-/9-85@A.::-=2655-=/ 7-/ 5.=;:-D-3,/ -=/,6:2.D-3,/ G-.:.=;-=C/ $-9-=5/ 7.-=2/ <G;-,-8B2/ 2-/ F<87-=/ 732/ 7-,62:.D-3,/G-.:.=;-=/93=/^bbbJ/9<<8/7-/D<@A2/ .=/#.=2/!=78.-5J/,-2.=;-=/E.>=/7.8-@2/=3/A-2;-8--7/ B<,-=/ 93=/ 7-/ 9352-/ :33;/ .=/ -.=7/ 7-@-,D-8/ M<G:-9-8.=;/ D-;.=/ ^bbbNC/ &-/ D<@A2-='8:-@<,/-=/Q.>,-;-=/E.>=/;-8--7/5.=75/^bba/[email protected]:.>B/^bee/-=/A-DD-=/,--8/2.>7/;-A37<,/2<2/--=/-9-=F.@A252<-523=7/2-/B<,-=C

S.>/#.=2/!=78.-5/=--,2/7-/,3Y.,3:-/7.-G2-/-=/7-/;-,.77-:7-/7.-G2-/93=/7-/<=2;8<=7.=;-==<;/52--75/2<-/.=/7-/2.>7C/&-/D-5@A<6F7-/G-.:.=;-=/52382-=/7.8-@2/=3/7-/33=:-;/93=/7-/9352-:33;/ .=/ #.=2/ !=78.-5C/ &.2/ E<6/ 765/ 76.7-=/ <G/ --=/ =<;/ =.-2/ D-8-.B2/ [email protected]/ &-;-,.77-:7-/ 7.-G2-/ 9-82<<=2/ -@A2-8/ --=/ B:-.=-/ 523=7338734F.>B.=;/ 2-=/ <GE.@A2-/ 93=/ A-2;-,.77-:7-/F32/D-2-B-=2/732/A-2/-8<5.-;32/=3/33=:-;/E--8/5=-:/.5/9-87.-G2/-=/=6/=36F-:.>B5=<;/2<-=--,2C/&.2/:.>B2/.=/<9-8--=52-,,.=;/,-2/7-/F338=-,.=;/732/7-/-8<5.-/3:/ 2.>7-=5/7-33=:-;/.5/<G;-28-7-=/M'-87-=J/011^NC

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5.3 Tijdsverloop ontgrondingen en aanzandingen

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)<<8/7-/D<@A2-=/Q.>,-;-=/-=/'8:-@<,/D:.>B2/732/7-/7.-G2-J/9-8<<8E33B2/7<<8/F-89-:52832-=J;8<2-8/ .5/ 73=/7-/ 7.-G2-/ 9-8<<8E33B2/ 2-=/ ;-9<:;-/ 93=/7-/ D<7-,D-5@A-8,.=;5@<[email protected]/ R=#.=2/!=78.-5/7338-=2-;-=/.5/7-/7.-G2-/93=/7-/<=2;8<=7.=;/3@A2-8/7-/9352-/:33;/;8<2-8/73=/7-7.-G2-/9-8<<8E33B2/7<<8/7-/B8.DD-=C

)-87-8/ D:.>B2/ 732/ 7-/ [email protected]/ D3;;-8;-;-9-=5/ <=9<:7<-=7-/ E.>=/ <,/ --=/ 8-:32.-/ <G/ 2-52-::-=/ 2655-=/ 7-/ 349<-8/ -=/ 7-/ -8<5.-/ @pC/ 5-7.,-=232.-/ D-=-7-=528<<,5/ 93=/ 7-D<7-,D-5@A-8,.=;5@<[email protected]/$-9-=5/.5/93=/--=/33=23:/G-.:.=;-=/7-/7326,/93=/7-/,-2.=;<=D-B-=7/<4/.5/7-/33=;-;-9-=/D3;;-8G-8.<7-/2-/86.,/<,/--=/=36FB-68.;-/3=3:L5-/,<;-:.>B2-/,3B-=C

5.4 Vaarbaanbreedte voor en na de aanleg

R=/ A-2/ 3:;-,--=/;-:72/ 732/ 7-/ D<7-,D-5@A-8,.=;5@<[email protected]/ --=/9-8D8-7.=;/93=/7-/ D<@A2<G:-9-8-=C/ &-/ 9352-/ :33;/ .=/ Q.>,-;-=/ A--42/ 7-/ ;8<<252-/ 9-8D8-7.=;/ <G;-:-9-87J/ 7.2/ B<,2F3385@A.>=:.>B/<=7-8,--8/7<<8732/7-/D8--72-/9<<8/7-/33=:-;/E--8/B:-.=/F35/ M<=;-9--8/^^1,NC/&-/D<@A2/.=/'8:-@<,/A--42/7-/B:-.=52-/9-8D8-7.=;/<G;-:-9-87J/,338/.5/.=/<87-/93=/;8<<22--9-=/D8--7/3:5/7-/D<@A2/.=/Q.>,-;-=C/&<<8/7-/33=E3=7.=;-=/D-=-7-=528<<,5/93=/7-/9352-:33;/D.>/Q.>,-;-=/<=252332/-@A2-8/9-85,3::.=;/93=/7-/8.9.-8C/&-/D<7-,B8.DD-=/D.>/'8:-@<,E<8;-=/9<<8/--=/<=;-9--8/9-8;-:.>BD38-/9338D33=D8--72-/3:5/7-/9352-/:33;/.=/Q.>,-;-=C

5.5 Langsverhang

I-2/ 9-8:<<G/ 93=/ A-2/ :3=;59-8A3=;/ .=/ 7-/ D<7-,/ .=/ 7-/ D.==-=D<@A2-=/ .5/ 9<<8/ 3::-/ 78.-/ 7-D<@A2-=/ E--8/ 938.[8-=7J/ A-2/ ;-,.77-:7-/ D<7-,9-8:<<G/ :332/ D.>/ --=/ ;-,.77-:7-/ 93=/ \/ >338=<;/52--75/--=/q;8.::.;r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

5.6 Dwarsverhang

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-. 8-:32.-9-/A<<;2-/9352-/:33;s-. 8-:32.-9-/D8--72-/9352-/:33;s-. =.-2/9<::-7.;/3Y.33:P5L,,-28.5@A-/528<,.=;s-. D<@A252833:/-=/5@A-8G2-/93=/7-/D<@A2s-. :-=;2-/93=/7-/D<@A2s-. .=9:<-7/B8.DD-=/-=/G.>:-85/-=/8.9.-8D-;8-=E.=;C

&-/7.-G2-/93=/7-/9352-/:33;/.=/Q.>,-;-=/.5/93=/;-:.>B-/<87-/3:5/7.-/ .=/#.=2/!=78.-5/MD-.7-<=;-9--8/\Jc1/,/<=7-8/A-2/8-4-8-=2.-9:3BNC/&-/D<9-=B3=2/93=/7-/D<7-,B8.DD-=/A-DD-=/--=9-8;-:.>BD38-/7.-G2-/93=/\Jc1/,-2-8/2-=/<GE.@A2-/93=/A-2/8-4-8-=2.-9:3BC/I.-87<<8/E<6/-8/;--=9-85@A.:/2-/9-8F3@A2-=/E.>=C/&-/8-:32.-9-/D8--72-/93=/7-/D<7-,D-5@A-8,.=;5@<[email protected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cc</2655-=/7-/8-@A2523=7-=/9<<8/-=/=3/7-/D<@A2/.=/Q.>,-;-=/.5/732/dc<C/R=/7-/D<@A2D.>/ '8:-@<,/ .5/ -9-=--=5/ ;--=/ 5G83B-/ 93=/ --=/ <=2;8<=7.=;55:-64J/ 7-/ 7.-G2-/ 2655-=/ 7-D<7-,B8.DD-=/<=7-8:.=;/9-85@A.:2/F-:C/&.2/ 9-85@A.:/F<872/F3385@A.>=:.>B/ 9-8<<8E33B2/ 7<<8:<B3:-/9-85@A.>=5-:-=/E<3:5/B8.D9:3,,-=C/$-8/G:3325-/93=/7-E-/:<B33:/7.-G-8-/<=2;8<=7.=;-=<=252332/ --=/ 7F3859-8A3=;/ ME.-/ D.>9<<8D--:7/ D.>:3;-/ 'J/ ".;668/ 'P\^J/ ,-2/ =3,-7F3857<<85=-7-/ "P"oN/ 93=/ :.=B-89338;-6:/ ;8-=5/ 2<2/ 8-@A2-8<-9-8J/ 9-8;-:.>BD338/ E<=7-8D<7-,D-5@A-8,.=;C/ R=/7-/ D<@A2/ D.>/Q.>,-;-=/D-;.=2/ 7-/ 7F385A-::.=;/=3352/ 7-/ 9352-/ :33;J-@A2-8/.=/7-/:33252-/G338/A<=7-87/,-2-8/D-;.=2/A-2/7F385A-::.=;/93=/7-/D.==-=D<@A2/3:/<G/7-9352-/:33;C/I.-8/28--72/A-2/2-;-=<9-8;-52-:7-/93=/7-/<=2;8<=7.=;55:-64/93=/#.=2/!=78.-5/<GC&.2/ 9-85@A.>=5-:/ 7<-2/ E.@A/ D-=-7-=528<<,5/ 93=/ 7-/ 5G<<8D86;/ 9<<8C/ &-/ G.>:-8/ 93=/ 7-5G<<8D86;/E<6/73=/<<B/--=/<<8E33B/B6==-=/E.>=/93=/7.2/9-85@A.>=5-:C/ R=/Q.>,-;-=/.5/ .=/7-D6.2-=D<@A2/ <=;-9--8/ 2655-=/ 7-/ 9-8B--85D86;/ -=/ 7-/ 5G<<8D86;/ --=/ E.>7-:.=;5-/ D-;8-=E.=;93=/7-/8.9.-8/7<<8/--=/73,F3=7/B37-J/F32/.=9:<-7/A--42/<G/7-/528<,.=;/-=/-9-=26--:/<G/A-2<=25233=/93=/--=/<=2;8<=7.=;55:-64C



5.7 Discussie

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6 Opzet en ijking van Delft3D voor SintAndries

6.1 Inleiding

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6.2 Eerdere simulaties en veranderingen bij aanleg van vastelaag

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//////////////////////////////////////////////////////>2K'(&#((,#(/8$=9$&.2'"&2-4I$65'"23(&25"'2."%$##"+#"2$&24,-6"&'"&



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Waalafvoer en geschematiseerde afvoer

0

750

1500

2250

3000

3750

4500

5250

600031

-12-

1998

01-0

3-19

99

30-0

4-19

99

29-0

6-19

99

28-0

8-19

99

27-1

0-19

99

26-1

2-19

99

24-0

2-20

00

24-0

4-20

00

23-0

6-20

00

22-0

8-20

00

21-1

0-20

00

20-1

2-20

00

18-0

2-20

01

19-0

4-20

01

18-0

6-20

01

17-0

8-20

01

16-1

0-20

01

15-1

2-20

01

Datum [dd-mm-jjjj]

Deb

iet

[m3 /s

]

Debiet

Geschematiseerddebiet

".;668/aPef !49<-89-8:<<G/^bbb/2<2/-=/,-2/011^/-=/;-5@A-,32.5--87-/349<-8/MH33:N

Q37-8A3=7/ .5/ 9<<8/ 7-/ 349<-8/ ;-8-B-=7/ ,-2/ 7-/ ;-,.77-:7-/ 349<-8/ G-8/ -2,33:C/ S.>/ 7-;-5@A-,32.5--87-/ AL78<;8334/ E<67-=/ =3,-:.>B/ --=/ 33=23:/ 33=G355.=;-=/ -=/ D-8-B-=.=;-=,<-2-=/ F<87-=/ 6.2;-9<-87C/ Q3,-:.>Bf/ @<=28<:-/ <4/ A-2/ 2<233:/ 283=5G<82/ ;-:.>B/ .5/ 33=/ A-2283=5G<82/ ,-2/ --=/ ;-,.77-:7-/ 349<-8/ -=/ --=/ @<[email protected]/ <G/ 7-/ ;-,.77-:7-/ G.-B349<-8-=M33=;-E.-=/=.-2/7-/;-A-:-/349<-8/7<<8/A-2/:33;F32-8D-7/;332J/A-2/A<<;F32-8D-7/528<<,2/73=<<B/,--NC/+-E.-=/7-/<,93=;8.>B-/8-B-=2.>7/[email protected]@3/001/668///b/73;-=N/7.-/=<<7E3B-:.>B/.5/D.>7-8;-:.>B-/D-8-B-=.=;-=J/.5/7-E-/5:-@A25/ZZ=/,33:/6.2;-9<-87C

".;668/aPbf S<7-,9-8:<<G/2CAC9C/B,8C/b0eJc/<G/^e,/6.2/7-/8-@A2-8P=<8,33::.>=



)-85@A.:/ 2655-=/;-5@A-,32.5--87-/ AL78<;8334/ -=/ 7-/ -2,33:/ ;-,.77-:7-/ AL78<;8334/ .5/ @.8@31J^/,-2-8C/&-/;-5@A-,32.5--87-/AL78<;8334/ .5/ 7.-G-8/ 2-8/ A<<;2-/ 93=/A-2/ -8<5.-;32/ -=/ @.8@31J1\/,-2-8/<=7.-G-8/2-8/A<<;2-/93=/7-/5-7.,-=232.-D6:2J/E.-/".;668/aPbC/&-/;-5@A-,32.5--87-349<-8/-=/7-/-2,33:/;-,.77-:7-/349<-8/5233=/9-8,-:7/.=/D.>:3;-/+/-=/".;668/aPeC

".;668/aP^1f )-85@A.:/2655-=/-2,33:/;-,.77-:7-/349<-8/-=/;-5@A-,32.5--87-/349<-8

!3=/ 7-/ A3=7/ 7-/ 528<<,5=-:A-.7/ ,-2/ !&?]P,-2.=;-=/ M!@<652.@/ &<GG:-8/ ?688-=2/ ]8<4.:-8P,-2.=;-=N/.5/-8/--=/[email protected]/6.2;-9<-87/<G/7-/;-B<E-=/9-8A<67.=;/2655-=/7-/86FA-.7/93=A-2/ 3::69.3:-/ 7--:/ -=/ 7-/ 9352-/ :33;C/ &.2/ .5/ =.-2/ ;-D86.B2/ 9<<8/ 7-/ .>B.=;/ 93=/ A-2/ ,<7-:J93=F-;-/ A-2/ =.-2/ --87-8/ [email protected]/ B6==-=/ E.>=/ 93=/ 7-/ ;-;-9-=5C/ R=/ ".;668/ aPb/ E.>=/ 7-7.-G2-/;-,.77-:7-/5=-:A-7-=/6.2;-E-2/34B<,52.;/93=/7-/!&?]P,-2.=;-=/-=/7-/D-8-B-=.=;-=,-2/D-A6:G/93=/&-:42\&C/&-/!&?]P,-2.=;-=/E.>=/6.2;-9<-87/<G/^a/,-./011^/,-2/--=/349<-893=/^bd1/,\X5J/7-/5=-:A-7-=/6.2/7-/D-8-B-=.=;-=/93=/&-:42\&/E.>=/-9-=--=5/;-D35--87/<G--=/ 349<-8/ 93=/ ^bd1/,\X5C/ &-/ !&?]P,-2.=;-=/ E.>=/ ;-,-2-=/ 93=/ B8.D93B/ =338/ B8.D93BJ/ .=".;668/aPb/.5/-@A2-8/3::--=/A-2/;-7--:2-/F--8;-;-9-=/2655-=/7-/=<8,33::.>=-=/.=C

Diepte gemiddelde stroomsnelheden16 mei 2001 met Q=1970m3/s

0.60

0.80

1.00

1.20

1.40

1.60

1.80

0.00 40.00 80.00 120.00 160.00 200.00 240.00 280.00

Afstand vanaf linker-normaallijn [m]

Stro

omsn

elhe

id [

m/s

]

ADCP meting

VL30 AV45

VL30 AV50

VL35 AV45

VL35 AV50

VL40 AV50

".;668/aP^^f )[email protected]/ 93=/ 86FA-7-=/ 33=/ 7-/ A3=7/ 93=/ 7-/ 52<<,5=-:A-7-=



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'8/ .5/ ;--=/ .>B.=;/ 6.2;-9<-87/ =338/ 7-/ 5-7.,-=29-87-:.=;/ <9-8/ 7-/ 7F385833.-=/ .=/ 7-/ D<@A2C)<<8/A-2/ 2<233:/ 283=5G<82/ .5/6.2;-;33=/93=/7-/D-8-B-=.=;-=/93=/?CTC/#:<44/ ME.-/#:<44J/011^NF338.=/A-2/,<7-:/9<:7--7/33=/--=/>338283=5G<82/93=/a11C111/2<2/d11C111/,\X>338/F32/.=/7-<87-/:.;2/93=/A-2/H33:283=5G<82/93=/@.8@3/ae0C111/,\X>338C

'8/E.>=/2-9-=5/D-8-B-=.=;-=/6.2;-9<-87/,-2/9-85@A.::-=7-/(4PF3387-=/M@3:.D832.-/@<[44.@.[=29<<8/283=5G<82/<9-8/7-/9352-/:33;NC/&<<8/33=G355.=;/93=/7-E-/43@2<8/.5/;-G8<D--87/A-2E3=79-8:<<G/<9-8/7-/9352-/:33;/E<73=.;/33=/2-/G355-=J/732/7-E-/<9-8--=52-,2/,-2/7-,6:2.D-3,PG-.:.=;-=C/R=/A-2/&-:42\&P,<7-:/q:<G-=r/<9-8/7-/;-A-:-/9352-/:33;q5-7.,-=2D6:2>-5r/7.-/.=/7-/,6:2.D-3,P,-2.=;-=/=.-2/E.>=/F338;-=<,-=C/&.2/9-85@A.>=5-:B<,2/7<<8/7-/F.>E-/93=/,<7-::-8-=/93=/7-/9352-/:33;/-=/A-2/E3=7283=5G<82/7338<9-8/A--=J/E.-9-8;-:.>B.=;/MaC\N/9<<8/7-/[email protected]@<[44.@.[=2/9<<8/283=5G<82/<9-8/7-/9352-/:33;C/&-E-q5-.,-=2D6:2>-5/E.>=/<=7-8/3=7-8-/E.@A2D338/.=/".;668/aP^1

&-/D<7-,A<<;2-/93=/A-2/;-.>B2-/5.,6:32.-,<7-:/.5/F--8;-;-9-=/.=/".;668/aP^1C

".;668/aP^0f S<7-,A<<;2-/;-.>B2/5.,6:32.-,<7-:/93=/B,8/b0`J0/2<2/b0bJ`/M=3/`/>338N



6.5 Discussie

&-/9<:;-=7-/G6=2-=/F<87-=/=<;/<G;-,-8B2f

-. S8--72-/93=/7-/9352-/:33;&-/D8--72-/93=/7-/9352-/:33;/.5/.=/F-8B-:.>BA-.7/<=;-9--8/^`1/,-2-8C/&-/D8--72-/.=A-2/,<7-:/.5/@.8@3/^\0/,-2-8/M--=/9-85@A.:/93=/@.8@3/c/hNC/&.2/9-85@A.:/B<,2/7<<8/A-2;-B<E-=/ 8<<52-8/ 732/ ;-D86.B2/ .5C/ )<<8/ --=/ =36FB-68.;-8/ ,3329<-8.=;/ E<6/ 7-E-4.>=,3E.;-8/ ,<-2-=/ E.>=/ <4/ E<73=.;/ 9-87--:7/ 732/ 7-/ D8--7/ 93=/ 7-/ 9352-/ :33;<9-8--=B<,2/,-2/7-/8<<52-8G6=2-=/93=/A-2/8-B-=8<<52-8C/I.-8/.5/93=34/;-E.-=/<,732A-2/9-8F3@A2-/9-85@A.:/732/A.-87<<8/<=252332/=.A.:/.5C/&-/:-=;2-/93=/7-/9352-/:33;/.=A-2/ ,<7-:/ A3=;2/ -9-=--=5/ 34/ 93=/ 7-/ :<@32.-/ 93=/ 7-/ 8<<52-8G6=2-=J/ A.-8D.>/ .5/ A-29-85@A.:/5:-@A25/1J\/h/.=/9-8;-:.>B.=;/,-2/7-/F-8B-:.>BA-.7C

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7 Mogelijke verbeteringenbodembeschermingsconstructies

7.1 Inleiding

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7.2 Mogelijke constructieve oplossingen

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I-2/ :3=;5G8<4.-:/ <G/ --=/ 34523=7/ 93=/ b1/ ,/ 6.2/ 7-/ 8-@A2-8P=<8,33::.>=/ :332/ E.-=/ 732/ 7-5-7.,-=232.-D6:2/ 34=--,2/,-2/ 86.,/--=/,-2-8/ ME.-/ ".;668/ dP^0NC/&338-=2-;-=/F<872/ .=/ 7-D6.2-=D<@A2/D.>/OG.>=-=/ M2655-=/00c1/ -=/\dc1/,-2-8N/,--8/ 5-7.,-=2/ 34;-E-2/ -=/ =--,2/ 7-F32-87.-G2-/34J/-@A2-8/=<;/86.,5@A<<25/M1Jdc,N/<=7-8/A-2/,3Y.,3:-/D<7-,=.9-36C

".;668/dP^0f *3=;5G8<4.-:/<G/b1/,/6.2/8-@A2-8P=<8,33::.>=/93=34/B,8C/b0dJ\/2X,/b\^Jb

7.3.4 Geleidelijke eindversmalling

'-=/;-:-.7-:.>B-/9-85,3::.=;/33=/A-2/-.=7/,<-2/-89<<8/E<8;-=/732/A-2/5-7.,-=2/732/E.@A/33=7-/8-@A2-8<-9-8/D-9.=72/7-/,<;-:.>BA-.7/A--42/<,/E.@A/F--8/2-/B6==-=/A-852-::-=C/R=/".;668dP^\/.5/E.@A2D338/732/7.2/5:-@A25/.=/E--8/;-8.=;-/,32-/<G28--72C/I.-8D.>/.5/E-B-8/=<;/7.5@623D-:<9-8/ F32/ 9<<8/ --=/ 34523=7/ 7-E-/ 9-85,3::.=;/ ,<-2/ G:3325/ 9.=7-=s/ 7-/ A6.7.;-/ @<=4.;6832.-:-9-82/;--=/D-76.7-=7-/9-8D-2-8.=;/<GC/&-/5-7.,-=232.-D6:2/.5/=3;-=<-;/;-:.>B/;-D:-9-=/p63A<<;2-/-=/.5/<=;-9--8/^11/,/528<<,<GF33825/B<,-=/2-/:.;;-=C/&-/7.-G2-/.=/A-2/-8<5.-;32/.59-85:-@A2-87J/732/F.:/ E-;;-=/1J`c/,/7.-G-8/;-F<87-=C/&.2/ .5/ --=/9-8;8<2.=;/93=/@.8@3/ ahCI-2/;32/.5/-@A2-8/F-:/34;-=<,-=/p63/<GG-89:3B/732/D-=-7-=/7-/46=7-8.=;/93=/7-/9352-/:33;:.;2C



".;668/dP^\f S<9-=33=E.@A2/;-:-.7-:.>B-/-.=79-85,3::.=;/MB,8C/b0dJ\/2X,/b0bJ`0N

7.3.5 Geleidelijke eindverbreding

&-/;-:-.7-:.>B-/-.=79-8D8-7.=;/A--42/2<2/7<-:/A-2/5-7.,-=2/=<;/,--8/=338/7-/8-@A2-8<-9-8/2-;-:-.7-=J/E<73=.;/732/7-/D6:2/A<;-8/F<872/,338/F-:/5,3::-8/-=/E<7<-=7-/7-/D8--72-/93=/7-9338;-6:/ 93=/ ^d1/ ,-2-8/ F-:/ F<872/ ;-A33:7C/ I.-8D.>/ E<6/ A-2/ ;32/ ;8<2-8/ F<87-=C/ %.2/ 7-D-8-B-=.=;-=/D:.>B2/7.2/-@A2-8/=.-2/<G/2-/;33=/ME.-/".;668/dP^`NC/I-2/;32/F<872/D<9-=528<<,5.-25/D8-7-8/M-=B-:-/,-2-85NJ/,338/D:.>42/<=;-9--8/<G/;-:.>B-/7.-G2-C/&-/D6:2/F<872/.=7-87337A<;-8/ [email protected]@3/ 1Jc,J/ E.-/ ".;668/ dP^cN/ -=/ ;-7--:2-:.>B/ 52-.:-8/,338/ 7-/ ;-F-=52-/ D8--72-/,-2D.>D-A<8-=7-/ 7.-G2-/ F<872/ =.-2/ ;-A33:7/ -=/ E-:45/ =.-2/ 9-8D-2-87/ M<4/ 9-85:-@A2-87NC/ I.-8D.>;-:72J/ =-2/ 3:5/ D.>/ 7-/ ;-:-.7-:.>B-/ 9-85,3::.=;J/ 732/ 7-/ ;-B<E-=/ 34523=7/ F338<9-8/ 7-E-9-83=7-8.=;/ G:3325/ 9.=72J/ 7.5@623D-:/ .5C/ )<<83:5=<;/ :.>B2/ 7-E-/ <G:<55.=;/ =.-2/ ;[email protected]/ R=".;668/ dP^c/ .5/ F-:/ E.@A2D338/ 732/ 7-/ 5-7.,-=232.-D6:2/ 5,3::-8/ F<872C/ &-/ 34=3,-/ 93=/ 7-D8--72-/ 93=/ 7-/ 5-7.,-=232.-D6:2/ 28--72/ -@A2-8/ 3::--=/ <G/ D-=-7-=/ 7-/ P0Je1,/ S()011^/ -=:-9-82/E<7<-=7-/;--=/-Y283/D8--72-/<GC



".;668/dP^`f S<9-=33=E.@A2/;-:-.7-:.>B-/-.=79-8D8-7.=;/MB,8C/b0dJ\/2X,/b0bJ`0N

".;668/dP^cf &F385G8<4.-:/2-8/A<<;2-/93=/B,8C/b0eJc



7.3.6 Wegbaggeren van de sedimentatiebult

I-2/F-;D3;;-8-=/93=/7-/5-7.,-=232.-D6:2/9<<8B<,2/=.-2/A-2/G8<D:--,/-=/.5/7-8A3:9-/;--=@<[email protected]/ <G:<55.=;J/ ,338/ 7.-=2/ 2-8/ 9-8;-:.>B.=;C/ &-/ 7.-G2-/ 2<2/ F338<G/ 7-5-7.,-=232.-D6:2/.5/F-;;-A33:7/.5/;-:.>B/33=/7-/A<<;2-/93=/7-/D<9-=B3=2/93=/7-/9352-/:33;CV-2/7-E-/7.-G2-/F<872/--=/<9-87.-G2-/93=/@.8@3/1Jec/,/;-@8-[-87C/&-E-/-Y283/7.-G2-/7.-=2-89<<8/ 732/ -8/ 2655-=/ 7-/ D3;;[email protected]/ --=/ E</ ;8<<2/ ,<;-:.>B/ G-8.<7-/ E.2C/ I.-8D.>/ .5/ --=D3;;-8@[email protected]/ 93=/ @.8@3/ ^\dC111/,\/ =<7.;/ MF33893=/ @.8@3/ ^11C111,\/ <=7-8/ 7-/ P0Je1,S()011^NC/V-2/D.>9<<8D--:7/--=/;-,.77-:7-/D3;;-8@[email protected]/93=/`11/,\X668J/.5/7338/@.8@3\`1/ 668/ D3;;-82.>7/ 9<<8/ =<7.;C/ %.2/ ".;668/ dPâ/ D:.>B2/ 732/ A-2/ A-852-:/ 93=/ A-25-7.,-=232.-G8<@-5/7-/D6:2/D.==-=/-=B-:-/,33=7-=/F--8/ 2<2/<G/--=/ 2-/;8<2-/A<<;2-/ MA<;-873=/ 7-/ ;8-=5/ 93=/ 0Je1/ ,/ <=7-8/ A-2/ 8-4-8-=2.-9:3BN/ A--42/ ;-D83@A2C/ &-E-/ D-8-B-=.=;/ .5;-D35--87/<G/--=/@<=523=2-/349<-8/93=/â11/,\X5C/S.>/D.>9<<8D--:7/--=/:3;-8-/349<-8/E3:/[email protected]/93=/7-/7.-G2-/,.=7-8/ 5=-:/9-8:<G-=C/&-5<=73=B5/ .5/A-2/A-852-:/ 5=-::-8/ 73=/ .=/ --==<8,3:-/ D<@A2/ [email protected]@3/ ^`/ ,\X73;XB,J/ E.-/ )3=/ 7-=/ S833B/ -=/ $-8,-5J/ 011^NC/ Q3/ @.8@3/ `,33=7-=/.5/7-/D<7-,/<G/7-/,3Y.,3:-/A<<;2-J/.=/7.-/G-8.<7-/.5/765/--=/A-852-:/93=/^11C111,\/<G;-28-7-=C

".;668/dPâf )-8:<<G/93=/5-7.,-=232.-D6:2/.=/7-/2.>7/2CAC9C/B,8C/b0eJc/=3/D3;;[email protected]

I-2/F-;D3;;-8-=/93=/7-/D6:2/A--42/<G/7-/7.-G2-/93=/A-2/;32/F-.=.;/.=9:<-7J/=3,-:.>Bf/1J^1/,5-7.,-=232.-/ <G/ --=/7.-G2-/ 93=/ @.8@3/ aJ\1/,/ M// 0hNC/&-E-/1J^1/,-2-8/ .5/ =3/ ^/ >338/ -@A2-83:F--8/D.>=3/;-8-76@--87/2<2/<G/7-/<<85G8<=B-:.>B-/7.-G2-C/&-/9-8<=7.-G.=;/93=/A-2/;32/7<<8A-2/D3;;-8-=/93=/7-/D6:2/<=252332J/7<<8732/-8/,.=7-8/F32-8/7<<8/A-2/-8<5.-;32/528<<,2C/I-2G8<4.-:/ 2-8/ A<<;2-/ 93=/ 7-/ 5-7.,-=232.-D6:2/ .5/ 7<<8/ 7-/ D3;;[email protected]/ 9-8;8<<2/ -=/ E<7<-=7-528<<,2/ ,--8/ F32-8/ <9-8/ 7-/ q5-7.,-=232.-D6:2rJ/ 2<2732/ 7-/ D6:2/ F--8/ ;8<-.2/ -=/ 7-/ 7.-G2-9-89<:;-=5/.=/A-2/-8<5.-;32/F--8/2<-=--,2C



7.3.7 Storten in het erosiegat

I-2/52<82-=/.=/A-2/-8<5.-;32/ .5/D-B-B-=/<,/7-/7338D.>/A<8-=7-/2.>75@A33:/ 2-/D-G3:-=/F338.=A-2/;32/<=252332C/ R=/A<<47526B/a/D:--B/3:/732/A-2/;32/=3/7-/33=:-;/93=/A-2/G8<2<2LG-/ .=/ A-2D-;.=/ 5=-:/<=2F.BB-:2/ -=/7338=3/ :3=;E33,/=338/ E.>=/ [email protected]/ ;332C/ R=/ 7.2/ ;-93:/ .5D-B-B-=/A<-/A-2/;32/E.@A/<=2F.BB-:2/3:5/A-2/-8<5.-;32/.=/A-2/G8<2<2LG-/F<872/7.@A2;-52<82/=3/0>338C/%.2/".;668/dP^d/D:.>B2/732/7.2/=-2/3:5/D.>/A-2/<=2F.BB-:-=/93=/7-/5-7.,-=232.-D6:2/D.==-=-=B-:-/ ,33=7-=/ ;-D-682C/ R=/ 2-;-=52-::.=;/ 2<2/ A-2/ G8<@-5/ D.>/ 7-/ 5-7.,-=232.-D6:2/ 76682/ 7-<=2F.BB-:.=;/ 93=/ 7-/ [email protected]/ =3D.>/ 7-/ =<8,33::.>=/ :3=;-8/ 73=/ D.>/ 9-87-8/ F-;;-:-;-=/G6=2-=C

".;668/dP^df )-8:<<G/93=/A-2/-8<5.-;32/.=/7-/2.>7/2CAC9C/B,8C/b0eJ0e/=3/52<[email protected]

S.>/A-2/52<82-=/93=/A-2/;32/28--72/-@A2-8/<<B/=<;/A-2/9-85@A.>=5-:/<G/732/7-/5-7.,-=232.-D6:234=--,2C/&<<8/A-2/52<82-=/.=/A-2/-8<5.-;32/F<872/A-2/G8<4.-:/9-8B:-.=7/-=/7-/528<<,5=-:A-.79-8A<<;7J/F3387<<8/-8<5.-/<G28--72/93=/7-/D6:2C/'@A2-8/A-2/-8<5.-;32/A-852-:2/E.@A/.=/-=B-:-,33=7-=/F338=3/7-/ 5-7.,-=232.-D6:2/F--8/;8<-.2J/ E.-/".;668/dP^eC/I-2/9-85@A.>=5-:/732/7-5-7.,-=232.-D6:2/ =.-2/ 2<2/ 7-/ <<85G8<=B-:.>B-/ A<<;2-/ 33=;8<-.2/ B<,2/ 7<<8/ A-2/ 4-.2/ 732/ 7-D3;;[email protected]/.5/2<-;-G352/0/>338/=3/7-/33=:-;/93=/7-/9352-/:33;/-=/7-/D<7-,/7338D.>/=<;/=.-2;-A--:/.=/-9-=F.@A2/F35C

S.>/A-2/7.@A252<82-=/93=/A-2/-8<5.-;32/ :.;2/ --=/D3;;[email protected]/93=/7-/ 5-7.,-=232.-D6:2/9<<8/7-A3=7C/ O,/ --=/ E</ 76.7-:.>B/ ,<;-:.>B/ D--:7/ 2-/ B8.>;-=/ 93=/ 7-/ .=;8-G-=/ E.>=/ 7-E-/ 3G382D-B-B-=C/'-=/<=7-8E<-B/=338/--=/@<,D.=32.-/93=/,3328-;-:-=/F<872/73=/<<B/33=D-9<:-=J7.2/;-:72/E<F-:/9<<8/D3;;-8-=/-=/52<82-=/3:5/9<<8/7-/@<[email protected]/,3328-;-:-=C



".;668/dP^ef )-8:<<G/93=/5-7.,-=232.-D6:2/.=/7-/2.>7/2CAC9C/B,8C/b0eJc/=3/52<[email protected]

I-2/ 52<82-=/ .=/ A-2/ -8<5.-;32/ A--42J/ E<3:5/ 3:/ 6.2/ --87-8/ <=7-8E<-B/ D:--B/ ME.-/ '-87-=/ 011^NJ;-9<:;-=/ 9<<8/ 7-/ D.==-=D<@A2/ D.>/ OG.>=-=C/ %.2/ ".;668/ dP^b/ M2CAC9C/ B,8C/ b\1JcN/ D:.>B2/ 7.2.=7-87337J/-@A2-8/E.>=/7-/;-9<:;-=/,338/=-2/B8.2.-BC

".;668/dP^bf S.==-=D<@A2/OG.>=-=/b1,/6.2/:.=B-8P=<8,33::.>=J/=3/52<[email protected]



7.3.8 Bodemverloop ten behoeve van vortex excluder

)<<8/A-2/2<-G355-=/93=/--=/9<82-Y/-Y@:67-8/.5/7-/A<<;2-:.;;.=;/93=/D-:3=;/-=/7-/938.32.-/.=A-2/ D<7-,9-8:<<G/ .=/ 7-/ 2.>7C/ R=/ ".;668/ dP01/ .5/ A-2/ D<7-,9-8:<<G/ F--8;-;-9-=/ D.>/ --=938.[8-=7-/349<-8/M-2,33:;-,.77-:7NC/'-=/9<82-Y/-Y@:67-8/.5/--=/9352-/@<[email protected]/7.-/.=/--=D<7-,/F<872/ 33=;-:-;7/,-2/ --=/ 938.[8-=7-/ A<<;2-/ .=/ A-2/ ;-93:/ D.>/ #.=2/ !=78.-5C/ !:5/ 7-D<7-,/A<;-8/F<872/73=/7-/D<9-=B3=2/93=/7-/9<82-Y/-Y@:67-8/E3:/7-E-/7.@A2/B6==-=/5:.DD-=-=/ 73387<<8/ 2.>7-:.>B/ =.-2/ ,--8/ 46=@2.<=-8-=C/ &-/ A<;-8-/ D<7-,A<<;2-/ 28--72/ <G/ D.>/ A<;-349<-8-=/ -=/ E3:/ 73=/,.=7-8/ 5=-:/ G8<D:-,-=/ ;-9-=/ 9<<8/ 7-/ 7.-G;3=;/ 93=/ 7-/ 5@A--G93382CS-:3=;8.>B/7338D.>/.5/F-:/732/3:5/A-2/F32-8/F--8/733:2/7-/9<82-Y/-Y@:67-8/E.>=/F-8B.=;/A-8932C

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R=/".;668/dP01/E.>=/7-/\/A<<;F32-8G.-B-=/2-86;/2-/9.=7-=/.=/7-/A<<;2-:.;;.=;/93=/7-/D<7-,CQ3352/ A-2/ 9-8:<<G/ .=/ A-2/ D-;.=/ -=/ 7-/ 3:;-,--=/ 73:-=7-/ 28-=7/ 93=/ 7-/ D<7-,/ ME.-/ ,--8A.-8<9-8/.=/D.>:3;-/+N/.5/--=/938.32.-/93=/<=;-9--8/1Jd1/,/F338/2-/=-,-=/<G/A-2/G6=2/\c/,6.2/7-/8-@A2-8P=<8,33::.>=C/OG/b1/,-2-8/6.2/7-/8-@A2-8P=<8,33::.>=/.5/7.2/=<;/E<o=/1J`1/,C

)<<8/7-/B-65/93=/7-/33=:-;/93=/--=/9<82-Y/-Y@:67-8/.5/D-:3=;8.>B/732/7-E-/=3/A<<;F32-8/-=765/--=/A<<;/D<7-,=.9-36J/F--8/<G-=/B<,2/ 2-/ :.;;-=/-=/7-/F-8B.=;/A-8932C/I.-89<<8/E3:--=/=37-8/<=7-8E<-B/=<7.;/E.>=s/E.-/A-2/A<<47526B/?<=@:65.-5/-=/33=D-9-:.=;-=C/&.2/=37-8<=7-8E<-B/E<6/D.>9<<8D--:7/B6==-=/D-5233=/6.2/<=7-8/3=7-8-/5@A33:,<7-::-=/<=7-8E<-BC/&-938.32.-/.=/D<7-,A<<;2-/93=/@.8@3/1Jd1/,/.5/7-/;-,.77-:7-/D<7-,:.;;.=;J/7-/D<9-=B3=2/93=7-/9<82-Y/-Y@:67-8/E3:/A.-8/D<9-=/6.2/,<-2-=/52-B-=C/R=/.-7-8/;-93:/;-768-=7-/A-2/,-8-=7--:93=/A-2/>338C



7.4 Discussie

I-2/9<:;-=7-/G6=2/F<872/=<;/<G;-,-8B2f

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



8 Vergelijking van de mogelijke verbeteringen

8.1 Inleiding

R=/A<<47526B/d/.5/93=/--=/33=23:/,<;-:.>B-/<G:<55.=;-=/3:/--=/5-:[email protected]/;-,33B2/F-:B-/F-:/-==.-2/E.>=/D-8-B-=7/,-2/D-A6:G/93=/&-:42\&C/ R=/7.2/A<<47526B/F<872/--=/34F-;.=;/;-,33B22655-=/ 7-/ 2-@A=.5@A-/ -=/ -@<=<,.5@A-/ B-=,-8B-=/ 93=/ 7-/ 9-85@A.::-=7-/ <G:<55.=;-=C/ $-=--852-/ F<87-=/ .=/ G383;8334/ eC0/ 7-/ 9-85@A.::-=7-/ D-8-B-=7-/ @<[email protected]/ <G/ 2-@A=.5@A-35G-@2-=/D-5@A<6F7C/&338D.>/ .5/ --=/34F-;.=;/;-,33B2/=338/,<;-:.>B-/ 2<-G35D338A-.7/,-2A-2/D-A33:7-/-44-@2/-=/--=/9-8;-:.>B.=;/33=/7-/;-52-:7-/-.5-=C/&-/@<[email protected]/<G:<55.=;-=7.-/ 73386.2/ 9<:;-=/F<87-=/ .=/ G383;8334/ eC\/ <G/ -@<=<,.5@A-/ 35G-@2-=/ 9-8;-:-B-=C/ $-9-=5F<872/.=/G383;8334/eC\/7-/<G:<55.=;/,-2/D-A6:G/93=/D3;;-8-=/D-5@A8-9-=C

8.2 Technische afwegingen

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Netto contante waarde

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8.4 Discussie

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9 Discussie

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/


WL | Delft Hydraulics 1 0 – 1

10 Conclusies en aanbevelingen

R=/ 7.2/ A<<47526B/ F<87-=/ 7-/ D-:3=;8.>B52-/ @<=@:65.-5/ ;-;-9-=/ -=/ =37-8/ 2<-;-:.@A2C/ &-@<=@:65.-5/D.-7-=/<,/2-/D-;.==-=/3=2F<<87/<G/7-/G8.,3.8-/7<-:52-::.=;/E<3:5/9-8,-:7/.=/A-2D-;.=/93=/A-2/9-85:3;C/)-89<:;-=5/F<87-=/--=/33=23:/3=7-8-/@<=@:65.-5/9-8,-:7/7.-/6.2/A-2<=7-8E<-B/ E.>=/ ;-9<:;7C/ %.2/ 7-/ @<=@:65.-5/ 9<:;-=/ -=B-:-/ 33=D-9-:.=;-=/ 9<<89-89<:;<=7-8E<-B-=/-=/,<;-:.>B-/9-8D-2-8.=;-=/@CpC/6.2D8-.7.=;-=/93=/7-/<G:<55.=;-=C/&-@<=@:65.-5/ -=/ 33=D-9-:.=;-=/ E.>=/ ,-2/ =3,-/ ;-8.@A2/ <G/ 7-/ D<@A2/ 93=/ #.=2/ !=78.-5J/ ,338B6==-=/ME<3:5/.=/7-/[email protected]/3:/9-8,-:7/.5N/<<B/7--:5/F<87-=/2<-;-G352/<G/7-/D<@A2-=/D.>'8:-@<,/-=/Q.>,-;-=C

10.1 Conclusies

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1 0 – 2 WL | Delft Hydraulics

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WL | Delft Hydraulics L i t . – 1

Literatuur

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Morfologische problemen rond bochtverbeteringen ... - TU Delft

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