교각세굴심 산정공식의 적용성 평가

다국어 초록 (Multilingual Abstract)

As economic development accelerated, the expansion of traffic facilities became very important. For this reason, the safety review as the construction of bridges on the river and sea are essential. Bridge superstructure to be built on the river and the sea is being implemented fairly well, such as structural analysis. However, the safety review of scour is primarily occurring mainly based on epidemiological analysis of soil for substructure repair water flow caused phenomenon does not review focuses. Currently, we are predicting using scour prediction formula overseas. Excessive design of the estimates of the depth of scour in bridge design without the design criterion related to scouring is costly to repair and prevent scour.
It seems the difference is largely up to several times between the estimates of the current international scour depth prediction formulas that apply to domestic scour depth situation is struggling to scour depth prediction. For domestic and processes the reference value to the calculated result of the CSU formula but can not be accurate in all conditions.
The purpose of this study was to compare with the data through experiments reflecting the Hydraulic Characteristics of the river in order to predict the scour depth by applying the existing scour depth prediction formula obtained by experimental scour depth and to help the accurate scour depth estimation from rivers design process.

목차 (Table of Contents)

• Ⅰ. 서 론 1
• 1.1 연구의 필요성 및 목적 1
• 1.2 연구동향 3
• 1.3 연구내용 및 범위 7
• Ⅱ. 국부세굴에 대한 기본 이론 8
• 2.1 세굴의 분류 8
• 2.2 국부세굴 및 전면세굴 9
• 2.3 교각 주변에서의 흐름장의 변화 및 세굴인자 10
• 2.4 국부세굴 분석을 위한 무차원 매개변수 24
• Ⅲ. 교각세굴심 산정공식 및 세굴 실험자료 29
• 3.1 교각세굴심 산정공식 29
• 3.2 수리실험 자료 및 자료특성 36
• Ⅳ. 분석 및 고찰 38
• 4.1 산정공식 적용결과 38
• 4.2 관측된 세굴심과 산정공식간의 비교 52
• Ⅳ. 결 론 56
• 참고문헌 58