Apron하류 하상보호공의 안정성
Stability of River Bed Protection Works in Downstream of an Apron
- 주제(키워드) 세굴 , 안정성 , 하상보호공 , 블록설치길이 , 채움재직경 , Scour , Stability , River bed protection works , Established block length of the block , Filler diameter
- 발행기관 江陵大學校 大學院
- 지도교수 朴相德
- 발행년도 2008
- 학위수여년월 2008. 2
- 학위명 석사
- 학과 및 전공 土木工學科
- 원문페이지 viii, 63 p.
- 본문언어 한국어
초록/요약
The scour is occurred by horizontal direction structures when flood occurs as dam, and it brings about the instability of the structure. This study is to research for stability of river bed protection works in downstream of an apron, and scour aspect at downstream of an apron. Stability of the block and the scour aspect of downstream were estimated by hydraulic model test at the open channel that was installed in block at downstream of apron. Stability of block was effected on established length of block and filler diameter, and was found to be inverse proportion to each other. The scour depth of section that block established place, depend on established length of block, filler diameter, discharge, Reynolds number, Froude number etc. Stability of block on scour is affected by established length of the block and the filler diameter. It will be able to secure the stability of the block with increase in established length of the block and filler diameter. Results in this study, stability of the block will be able to secure at establishment length of the block when it is longer than 13.35m.
more목차
제 1장 서론 = 1
1.1 연구목적 및 배경 = 1
1.2 연구 동향 = 2
1.3 연구내용 및 방법 = 3
제 2장 기본이론 = 5
2.1 Apron 하류 하상세굴형상 = 5
2.2 중공블럭 내부세굴특성 = 9
제 3장 수리실험 및 결과 = 19
3.1 수리모형 실험 = 19
3.1.1 개수로 실험장치 = 19
3.1.2 중공블럭 모형과 적용상사율 = 21
3.2 실험조건 및 실험방법 = 23
3.2.1 실험조건 = 23
3.2.2 실험방법 = 25
3.3 세굴심과 무차원 특성값 = 26
3.4 세굴심 = 28
제 4장 세굴양상 = 31
4.1 하상 보호공 하류부 하상세굴 = 31
4.2 하상 보호공 내의 세굴 = 41
제 5장 분석 및 고찰 = 56
5.1 세굴형상 = 56
5.2 하상 보호공의 파괴조건 = 57
5.3 고찰 = 58
제 6장 결론 및 향후 연구과제 = 59
6.1 결론 = 59
6.2 향후과제 = 60
참고문헌 = 61
