Modeliranje hidravličnega sistema Mlinščice

Povzetek

Ključne besede

Podatki

Jezik:	Slovenski jezik
Leto izida:	2005
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[A. Biro]
UDK:	519.61/64:626.22:626.3(043.2)
COBISS:	2815841
Št. ogledov:	1926
Št. prenosov:	700
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Modeling of the Mlinščica Hydraulic System
Sekundarni povzetek:	In the following diploma a reach of Mlinščica creek, predominantly an energetic channel which streams from the Kamniška Bistrica into the Sava river through villages and towns of Ihan, Videm, Dol, Kleče and Dolsko is discussed. Mlinščica creek (in translation: Millcourse, Millrace) was built in the early 20th century, its function was the conduction of water to the mill wheels of the local saws and mills. Nowdays, three small hydroelectric power plants are situated at its course. Becauce of the damage done by floods its riverbed was repaired for several times which resulted also in the reduction of the primary installed discharge of 3.8 m3/s by 25% to 30%. The company VGP Hidrotehnik elaborated in 1994 a project, which is describing the necessary riverbed maintenance works. This project also includes three geodetic points for each of the 93 cross sections of the discussed reach of the creek, from its beginning (km 11.657) to km 4.450. These points were the base for design of a mathematical model of the water channel, which was used for the preliminary flow calcultions. They showed that the Mlinščica creek can not conduct the discharge of 3.8 m3/s without owerflowing its banks. As a resut of the task a new model of Mlinščica was created, where the owerflooded banks were raised as necessary to conduct the nominal 3.8 m3/s flow with a 15 cm safety height. We have estimated that the left bank of Mlinščica creek needs an embankment raise in the length of 1200 m and the right bank in the length of 2070 m. The suggested embankments are 2 m wide at the top and their banks have an inclination of 1:1.5.
Sekundarne ključne besede:	Mlinščica;small hydro power plants;1D mathematical model;hydraulic model HEC – RAS;embankment raise
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. Ljubljana, Fakulteta za gradbeništvo in geodezijo, Oddelek za gradbeništvo, Univerzitetni študij vodarstva in komunalnega inženirstva
Strani:	38 f.,14 pril.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	Modeling of the Mlinščica Hydraulic System
Ključne besede (ePrints):	Mlinščica;male hidroelektrarne;1D matematični model;hidravlični model HEC – RAS;nadvišanje nasipov
Ključne besede (ePrints, sekundarni jezik):	Mlinščica;small hydro power plants;1D mathematical model;hydraulic model HEC – RAS;embankment raise
Povzetek (ePrints):	V diplomski nalogi je obravnavan odsek Mlinščice, pretežno energetskega kanala, ki teče od Kamniške Bistrice skozi naselja Ihan, Videm, Dol, Kleče in Dolsko do Save. Mlinščica je bila urejena v začetku 20. stoletja, kasneje pa večkrat dograjevana. Njeno vodno moč so izkoriščali mlini in žage, danes pa so na njej tri male hidroelektrarne. Zaradi vodnih ujm so bila na njej večkrat izvedena sanacijska dela, ki naj bi prevodnost struge zmanjšala s prvotnih 3.8 m3/s za 25% do 30% (IBE, 1998). Leta 1994 je VGP Hidrotehnik izdelal projekt, ki opisuje potrebna vzdrževalna dela na Mlinščici in med drugim vsebuje tudi po tri geodetske točke za vsakega od 93 prečnih profilov na odseku od začetka Mlinščice (km 11.657) do km 4.450. Na podlagi teh podatkov smo pripravili matematični model struge ter z različnimi pretoki opravili preliminarni račun. Ta je pokazal, da pretoka 3.8 m3/s struga ne prevaja brez prelivanja, zato smo z umetnimi nadvišanji s pomočjo nasipov ustvarili strugo, v kateri je kota gladine pri nominalnem pretoku na celi dolžini najmanj 15 cm pod robom obeh bregov. Ocenjujemo, da je treba na levem bregu z nasipi nadvišati odsek v dolžini 1200 m, na desnem pa odsek v dolžini 2070 m. Predlagani nasipi imajo 2 m široko krono, brežine pa v naklonu 1:1.5.
Povzetek (ePrints, sekundarni jezik):	In the following diploma a reach of Mlinščica creek, predominantly an energetic channel which streams from the Kamniška Bistrica into the Sava river through villages and towns of Ihan, Videm, Dol, Kleče and Dolsko is discussed. Mlinščica creek (in translation: Millcourse, Millrace) was built in the early 20th century, its function was the conduction of water to the mill wheels of the local saws and mills. Nowdays, three small hydroelectric power plants are situated at its course. Becauce of the damage done by floods its riverbed was repaired for several times which resulted also in the reduction of the primary installed discharge of 3.8 m3/s by 25% to 30%. The company VGP Hidrotehnik elaborated in 1994 a project, which is describing the necessary riverbed maintenance works. This project also includes three geodetic points for each of the 93 cross sections of the discussed reach of the creek, from its beginning (km 11.657) to km 4.450. These points were the base for design of a mathematical model of the water channel, which was used for the preliminary flow calcultions. They showed that the Mlinščica creek can not conduct the discharge of 3.8 m3/s without owerflowing its banks. As a resut of the task a new model of Mlinščica was created, where the owerflooded banks were raised as necessary to conduct the nominal 3.8 m3/s flow with a 15 cm safety height. We have estimated that the left bank of Mlinščica creek needs an embankment raise in the length of 1200 m and the right bank in the length of 2070 m. The suggested embankments are 2 m wide at the top and their banks have an inclination of 1:1.5.
Ključne besede (ePrints, sekundarni jezik):	Mlinščica;small hydro power plants;1D mathematical model;hydraulic model HEC – RAS;embankment raise
ID:	8311455