Analiza izmjerenih i teorijskih vremena koncentracije te njihov utjecaj na računske hidrograme na slivu rijeke Krapinice

master's thesis

• Title (english): Analysis of measured and theoretical concentration times and their impact on calculated hydrographs in the Krapinica River Basin
• Author: Josip Vuco
• Mentor: Damir Bekić (mentor)
• Committee member: Kristina Potočki (predsjednik povjerenstva)
• Committee member: Damjan Bujak (član povjerenstva)
• Committee member: Damir Bekić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Water Research); Zagreb
• Defense date and country: 2024-11-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Hydrotechnology

Abstract

U ovom radu prikazuje se usporedba teorijskih i empirijskih vremena koncentracije i vremena zakašnjenja na primjeru sliva rijeke Krapinice. Cilj rada bio je ustvrditi pouzdanost teoretskih vrijednosti vremena zakašnjenja i koncentracije i njihov utjecaj na oblik hidrograma otjecanja. Kao teorijske metode korištene su metode Kirpich (1940.), FAA (1970.), SCS (1954.) i kinematski val (1955.). Za izračun empirijskih vrijednosti korišteni su izmjereni podatci o 5-minutnim oborinama s meteorološke postaje Krapina u razdoblju od 1995. do 2020. godine, te izmjereni starni protoci na hidrološkoj postaji Krapina. Analizom podataka o oborinama i protocima dobivene empirijske vrijednosti vremena koncentracije i zakašnjenja. Teorijske vrijednosti dobivene iz fizikalnih karakteristika vodotoka i uzvodnog slivnog područja uz korištenje teorijski određenih formula (Kirpich, FAA, SCS i kinematski val). Nadalje, izrađena je analiza utjecaja različitih vrijednosti vremena koncentracije sliva na oblik hidrograma otjecanja. Računski hidrogrami dobiveni su hidrološkim proračunom u HEC-HMS softveru.

Abstract (english)

This paper presents a comparison of theoretical and empirical times of concentration and lag times using the example of the Krapinica River basin. The aim of the paper is to establish the reliability of theoretical values of lag time and time of concentration and their impact on the shape of the runoff hydrograph. Theoretical methods used include the Kirpich method (1940), FAA method (1970), SCS method (1954), and kinematic wave method (1955). Empirical values are calculated using measured data on 5-minute rainfall from the Krapina meteorological station over the period from 1995 to 2020, along with recorded flow rates from the Krapina hydrological station. By analyzing the data on rainfall and flows, empirical values for the time of concentration and lag time are obtained. Theoretical values are derived from the physical characteristics of the watercourse and upstream basin area, using theoretically established formulas (Kirpich, FAA, SCS, and kinematic wave). Furthermore, an analysis of the impact of different basin concentration times on the shape of the runoff hydrograph is conducted. Calculated hydrographs are obtained through hydrological modeling in HEC-HMS software.

• Keywords: vrijeme koncentracije; vrijeme zakašnjenja; maksimalni protok; hidrogram otjecanja
• Keywords (english): time of concentration; lag time; peak flow; hydrograph
• Language: croatian
• URN:NBN: urn:nbn:hr:237:110572
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-12-16 06:59:46