http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
한국 연안의 극치 파랑환경과 Freak Wave의 특성에 관한 연구
류청로,윤홍주,박종화,김현주 한국환경과학회 1993 한국환경과학회지 Vol.2 No.3
Extreme environments and freak wave characteristics in the coastal waters of Korean Peninsula are analyzed using the observed wave data. Freak wave has been intensely emphasized as an important environmental force parameter in several recent research works. However, the mechanism and occurrence probability of freak wave are not clarified. The aims of this study are: to summarize the distribution of extreme environment for wind waves, and to find occurrence probability of freak wave in the coastal waters of Korean Peninsula. These extreme sea conditions are discussed by applying extreme value analysis method, and the statistic characteristics are summarized which can be used to the design and analysis of coastal structures. The mechanism and the occurrence probability of freak wave are also discussed in detail using wave parameters in considered with wave deformation in the coastal waters.
생태계 제어 시설물의 설계 및 배치 최적화 ( 1 ) 연승식 양식시설의 계류력 특성 및 동요저감에 관한 연구
류청로,김현주 ( Cheong Ro Ryu,Hyeon Ju Kim ) 한국수산과학회 1995 한국수산과학회지 Vol.28 No.1
To develop the optimal design method for the longline type scallop culturing facilities in the open sea, numerical calculations and hydraulic model experiments are carried out for the stability and function optimization. Using the results for the motion and tension of the facilities, stable design concepts and effects of motion control system by vertical anchor and resistance discs are discussed. The results of this study that can be applied to the design are as follows: 1) Total external forces by design wave(H_(⅓)=6.7m, T_(⅓)=12sec) at the coastal waters of Jumunjin for unit facility (one main line) are estimated to 5-20 tons, and required anchor weights are 10-40 tons in the case of 2-point mooring system. Though the present facilities are stable to steady currents, but is unstable to the extreme wave condition of return period of 10 years. 2) The dimensions and depth of array systems must be designed considering the ecological environments as well as the physical characteristics including the mooring and holding forces that are proportional to the length and relative depth of main line to wave length, and the number of buoys and nets. 3) Oscillation of the facility is influenced by water particle motion and the weight of hanging net, and is excited at both edge, especially at the lee side. To reduce the motion of the nets, the vertical anchoring system and the resistence disc method are recommended by the experimental results. 4) The damage of rope near the anchor by abrasion should be prevented using the ring-type connection parts or anchor chains.
A New Design Method of Rubble Mound Structures with Stability and Wave Control Consideration
류청로,Ryu, Cheong Ro Korean Society of Civil Engeneers 1987 대한토목학회논문집 Vol.7 No.3
구조물(構造物)의 안정성(安定性)과 파랑제어기능(波浪制御機能)을 고려(考慮)한 새로운 사석구조물(捨石構造物) 설계법(設計法)을 제안(提案)하였다. 이 설계법(設計法)은 임의의 파랑조건하(波浪條件下)에서 파랑(波浪)의 반사(反射) 및 run-up을 저감(低減)시키고, 안정성(安定性)을 증대(增大)시키는 설계개념(設計槪念)을 가졌다. 설계식(設計式)은 허용파괴율(許容破壞率)과 안정성(安定性)에 대한 파군특성(波群特性)의 영향(影響) 도입(導入)하여 유도하였으며, 이에는 해안파(海岸波)의 평균(平均) run-sum이라는 새로운 외력개념(外力槪念)이 사용(使用)되었다. 마지막으로 이 새로운 설계법(設計法)에 의한 일양단면(一樣斷面)과 복합단면(複合斷面) 사석구조물(捨石構造物) 설계예(設計例)로부터 이 설계법(設計法)의 유용성(有用性)과 이점(利點)을 검증(檢證)하였다. A new design method of rubble mound structures that includes the considerations of stability and wave control is proposed. Using the method, design of structures that reduce the wave reflection and run-up and increase the rubble stability is assured under the given wave conditions. The new design formula is developed so that the allowable prcentage of damage and the wave grouping effects on rubble stability are also considered in design. For this a new definition of the mean run-sum is made. Finally, the new method is applied for the design of uniform and composite slope rubble mound structures and the significant advantages are found.