표제지
목차
제1장 서론 15
1.1. 연구의 필요성 및 목적 15
1.2. 연구내용 및 범위 18
제2장 기초자료 조사 20
2.1. 일반적인 해안침식원인 20
2.1.1. 항만 및 어항 건설 21
2.1.2. 호안 및 해안도로의 건설 23
2.1.3. 무분별한 하구 골재채취 및 항내준설사의 유용 24
2.1.4. 배후지의 개발 25
2.1.5. 지구온난화에 따른 기후변화의 영향 25
2.2. 우리나라 해안의 지형적 특성 및 해안침식 현황 28
2.3. 해안침식저감 기술의 필요성 34
2.4. 인공리프의 기능 및 적용사례 40
2.4.1. 인공리프(Artificial reef) 40
2.4.2. 인공리프의 특징 40
2.4.3. 인공리프의 기능(인공리프의 적용예) 41
2.5. 기존연구동향 조사 및 시공사례 43
2.5.1. 기존연구의 동향 43
2.5.2. 시공사례 45
2.6. 기존 인공리프의 문제점 56
제3장 수리모형실험을 이용한 잠제의 수리특성 57
3.1. 실험 개요 57
3.2. 실험장비 및 특성 58
3.2.1. 조파장치 58
3.2.2. 계측장비 60
3.3. 실험방법 62
3.3.1. 모형의 제작 및 특성 62
3.3.2. 실험조건 및 방법 66
3.4. 단열잠제의 수리특성 검토 69
3.4.1. 실험개요 69
3.4.2. 실험단면 69
3.4.3. 실험결과 70
3.5. 복열잠제의 수리특성 검토 81
3.5.1. 실험개요 81
3.5.2. 실험내용 82
3.5.3. 실험 결과 83
3.6. 복열잠제의 이격거리 검토 87
3.6.1. 실험개요 87
3.6.2. 실험내용 87
3.6.3. 실험결과 88
3.7. 단면실험 결과 분석 89
제4장 현지조사를 통한 잠제의 투과특성 91
4.1. 조사 개요 91
4.2. 현황 조사 92
4.3. 자료해석 93
4.3.1. 수압변동자료로부터 수면변동자료로의 변환 93
4.3.2. 파별해석 97
4.4. 조사 결과 분석 98
4.5. 수리모형실험 결과와의 비교·분석 107
제5장 잠제의 효용성 검토 109
5.1. 실험 개요 109
5.2. 대상해역의 침식원인분석 110
5.2.1. 궁촌리 해역의 침식원인분석 110
5.2.2. 화순리 해역의 침식원인분석 116
5.3. 실험조건 및 방법 119
5.3.1. 수치모형실험 119
5.3.2. 평면수리모형실험 125
5.4. 수치모형실험 및 3차원평면수리모형실험 결과 비교·분석 134
제6장 결론 및 향후 연구과제 139
6.1. 결론 139
6.2. 향후연구과제 141
參考文獻 142
ABSTRACT 147
國文要約 150
Table 2.1. Geographical characteristics 28
Table 2.2. Coastal erosion by monitoring results 29
Table 2.3. The distribution of the sandy shore 31
Table 2.4. example of a concrete block for Coastal Erosion 37
Table 3.1. Hydraulic Similarity 64
Table 3.2. Wave conditions for experiment 67
Table 3.3. The number of Tetrapod and Tetraneo under same experimental submerged breakwaters 68
Table 3.4. Cross section of experiment 69
Table 3.5. The parameters of experimental formula on Tetrapod 78
Table 3.6. The parameters of experimental formula on Tetraneo 78
Table 3.7. Cross section of experiment 82
Table 3.8. Experimental Case 82
Table 4.1. Coastal management project on Songdo 92
Table 4.2. Occurrence frequency Significant wave height(H1/3) per class and wave direction (PC-1, 1st)(이미지참조) 100
Table 4.3. Occurrence frequency Significant wave height(H1/3) per class and wave direction (PC-1, 2nd)(이미지참조) 101
Table 4.4. Occurrence frequency Significant wave height(H1/3) per class and wave direction (PC-1, 3rd)(이미지참조) 103
Table 4.5. Occurrence frequency Significant wave height(H1/3) per class and wave direction (PC-2)(이미지참조) 104
Table 4.6. Occurrence frequency Significant wave height(H1/3) per class and wave direction (PC-3)(이미지참조) 106
Table 5.1. Conditions of the numerical simulation 124
Table 5.2. Wavemaker for 3 Dimensional Hydraulic Model characteristic 125
Table 5.3. Experimental condition 130
Fig. 2.1. The cause of coastal erosion 21
Fig. 2.2. Yeongnang-dong Beach 22
Fig. 2.3. Change shoreline by the construction 22
Fig. 2.4. Namae-ri Beach 23
Fig. 2.5. Jangyo-ri Beach 24
Fig. 2.6. Gangmun Beach 25
Fig. 2.7. Sea level rise estimates(1990 ~ 2100, IPCC, 2001) 26
Fig. 2.8. Change in non-energy 27
Fig. 2.9. Thematic coastal erosion 30
Fig. 2.10. Average shoreline due to sea level rise Regression Rate 32
Fig. 2.11. Coastal erosion, Press Releases 33
Fig. 2.12. Notice that the 10-year plan for 2nd Coastal Maintenance Expenses distribution and the number of business locations 33
Fig. 2.13. Sand beach erosion status 35
Fig. 2.14. Due to global warming, coastal erosion and flooding disaster phenomena flowchart 36
Fig. 2.15. Relationship among reflection coefficient Kt and B/L 44
Fig. 2.16. Songdo Beach 45
Fig. 2.17. Youngjin Beach 46
Fig. 2.18. Namhangjin Beach 47
Fig. 2.19. Bongpyeong-ri Beach 48
Fig. 2.20. Ibrui beach 49
Fig. 2.21. Komatsu beach 50
Fig. 2.22. Ajigasawa beach 51
Fig. 2.23. Simonikawa beach 51
Fig. 2.24. Mochigamaha beach 52
Fig. 2.25. Tanoura beach 53
Fig. 2.26. Aoshima beach 54
Fig. 2.27. Miyazaki Seaside Park 55
Fig. 3.1. The shape of the Tetrapod and Tetraneo 58
Fig. 3.2. Wave Generator 59
Fig. 3.3. Composition of wave generator 59
Fig. 3.4. Wave height meter 60
Fig. 3.5. A/D, D/A convertor 61
Fig. 3.6. Definition sketch of experiment 69
Fig. 3.7. Transmission coefficient and Relative crown depth on Tetrapod 70
Fig. 3.8. Transmission coefficient and Relative crown depth on Tetraneo 71
Fig. 3.9. Transmission coefficient and Relative crown width on Tetrapod 72
Fig. 3.10. Transmission coefficient and Relative crown width on Tetraneo 73
Fig. 3.11. Transmission coefficient and wave height·representative pore diameter (0.14〈R/HI≤0.70)(이미지참조) 74
Fig. 3.12. Transmission coefficient and wave height·representative pore diameter (0.70〈R/HI≤9.00)(이미지참조) 75
Fig. 3.13. Transmission coefficient and sediment reynolds number (0.14〈R/HI≤0.70)(이미지참조) 76
Fig. 3.14. Transmission coefficient and sediment reynolds number (0.70〈R/HI≤9.00)(이미지참조) 77
Fig. 3.15. KT(cal) and KT(exp) for Transmission coefficient on Tetrapod(이미지참조) 79
Fig. 3.16. KT(cal) and KT(exp) for Transmission coefficient on Tetraneo(이미지참조) 80
Fig. 3.17. Definition sketch of experiment 81
Fig. 3.18. Transmission coefficient and Relative crown depth 83
Fig. 3.19. Transmission coefficient and Relative crown width 84
Fig. 3.20. Transmission coefficient and Relative crown depth 85
Fig. 3.21. Transmission coefficient and Relative crown width 86
Fig. 3.22. Experimental Case 87
Fig. 3.23. Relationship among reflection coefficient Kt and l 88
Fig. 4.1. The location map of field measurement 91
Fig. 4.2. Data conversion is a flow chart 94
Fig. 4.3. Maximum wave height, Maximum wave period and time series of measured wave direction(PC-1, 1st) 99
Fig. 4.4. Significant wave height, significant wave period and time series of measured wave direction(PC-1, 1st) 99
Fig. 4.5. Maximum wave height, Maximum wave period and time series of measured wave direction(PC-1, 2nd) 100
Fig. 4.6. Significant wave height, significant wave period and time series of measured wave direction(PC-1, 2nd) 101
Fig. 4.7. Maximum wave height, Maximum wave period and time series of measured wave direction(PC-1, 3rd) 102
Fig. 4.8. Significant wave height, significant wave period and time series of measured wave direction(PC-1, 3rd) 102
Fig. 4.9. Maximum wave height, Maximum wave period and time series of measured wave direction(PC-2) 103
Fig. 4.10. Significant wave height, significant wave period and time series of measured wave direction(PC-2) 104
Fig. 4.11. Maximum wave height, Maximum wave period and time series of measured wave direction(PC-3) 105
Fig. 4.12. Significant wave height, significant wave period and time series of measured wave direction(PC-3) 105
Fig. 4.13. Transmission coefficient and Relative crown width 108
Fig. 4.14. Transmission coefficient and Relative crown depth 108
Fig. 5.1. Study Area 109
Fig. 5.2. Aerial photos of Gungchon beach 110
Fig. 5.3. Analysis of shoreline changes from aerial photos (1971~2010) 111
Fig. 5.4. Water depth variation analysis result of 2006yr-2010yr 111
Fig. 5.5. Water depth variation analysis result of 2010yr-2011yr 112
Fig. 5.6. Results of wave induced currents (Before and after the construction of the Gungchon harbor) 113
Fig. 5.7. Measured time series of significant wave height(H1/3), and significant wave period(T1/3) of 2006yr(이미지참조) 114
Fig. 5.8. Measured time series of significant wave height(H1/3), and significant wave period(T1/3) of 2007yr(이미지참조) 114
Fig. 5.9. Measured time series of significant wave height(H1/3), and significant wave period(T1/3) of 2010yr(이미지참조) 115
Fig. 5.10. Measured time series of significant wave height(H1/3), and significant wave period(T1/3) of 2011yr(이미지참조) 115
Fig. 5.11. Aerial photos of Hwasun beach 116
Fig. 5.12. Results of wave induced currents (Before and after the construction of the Hwasun harbor) 117
Fig. 5.13. Measured time series of significant wave height(H1/3)(이미지참조) 118
Fig. 5.14. Wavemaker for 3 Dimensional Hydraulic Model 125
Fig. 5.15. Measuring and analysis system 126
Fig. 5.16. Wave height meter 127
Fig. 5.17. Results of wave induced currents before submerged structure (Gungchon beach, 3 Dimensional Hydraulic Model) 135
Fig. 5.18. Results of wave induced currents before submerged structure (Gungchon beach, Numerical Simulation) 135
Fig. 5.19. Results of wave induced currents after submerged structure (Gungchon beach, 3 Dimensional Hydraulic Model) 136
Fig. 5.20. Results of wave induced currents after submerged structure (Gungchon beach, Numerical Simulation) 136
Fig. 5.21. Results of wave induced currents before submerged structure (Hwasun beach, 3 Dimensional Hydraulic Model) 137
Fig. 5.22. Results of wave induced currents before submerged structure (Hwasun beach, Numerical Simulation) 137
Fig. 5.23. Results of wave induced currents after submerged structure (Hwasun beach, 3 Dimensional Hydraulic Model) 138
Fig. 5.24. Results of wave induced currents after submerged structure (Hwasun beach, Numerical Simulation) 138