Experiments on a Non-Wave Overtopping Type Seawall

Experimental Evidence of the Influence of Recurves on Wave Loads at Vertical Seawalls

“…Specifically, overtopping becomes negligible for non-dimensional freeboard (Rc / Hs) values of 1.5 and higher, while for ratios less than 1.2, the positive effect of the parapet vanishes. It is also noteworthy that several seawall shapes were proposed, where the vertical wall is completely replaced by a curved wall (recurve walls) to mimic the action of recurves and reduce overtopping, e.g., [5][6][7][8]. Compared with the good understanding of the effect of recurves and parapets on the reduction of overtopping rates at vertical seawalls, much less is known about the loads on these structures, which, therefore, are often estimated by experience.…”

A Study of Hydraulic Characteristics in Front of the Seawall under the Coexistence of Wave and Wind

“…최근 발생빈도와 규모가 증가하고 있는 고파랑은 일반적으 로 강풍을 동반하기 때문에 사석경사식의 구조물에서는 제체 의 경사면을 따라 높은 처오름과 대규모 월파가 발생된다 (Carrasco et al, 2018;Lorenzoni et al, 2016 (Franco et al, 1994;Bruce et al, **가톨릭관동대학교 토목공학과 강사(Lecturer, Civil Engineering, Catholic Kwandong University) **가톨릭관동대학교 토목공학과 교수(Corresponding author: Kyu-Han Kim,Professor,Civil Engineering,Catholic Kwandong University,24 Beomil-ro 579 beon-gil, Gangneung-si, Gangwon-do 25601, Korea, Tel: +82-33-643-3436, Fax: +82-33-647-3436, khkim@cku.ac.kr) 심규태 • 김규한 2018; Kerpen et al, 2019;Kim et al, 2019), 최근에는 방 재측면 뿐만 아니라 해역의 환경•이용면을 고려한 새로운 형 식의 호안의 개발 및 설계가 계획되고 있다 (Li et al, 2015;Kerpen et al, 2019). 대표적으로 월파를 제어하기 위해 직 립식 방파제에 월파저감시설을 설치한 후 그 효과를 유도함 과 동시에 호안전면에 소파블록을 병용하여 월파제어를 검토 한 사례가있으며 (Murakami et al, 1996), 방파제뿐만 아니라 호안 상단에 호안과 일체형으로 설치된 곡선 형상을 갖는 반 파형 구조형식에 대한 월파저감 효과를 검토한 연구가 있다 (Altomare et al, 2016;Pearson et al, 2004;Pullen et al, 2009). 이외에 Doorslaer et al(2015)…”

Coastal Defences on Low-Lying Reef Flats: A Laboratory Study of Seawall Shape and Position

“…While a vast body of literature exists on wave force and stability issues in the design of breakwaters [7][8][9][10][11][12][13][14][15], together with the parameterization of overtopping for simple seawall shapes [15][16][17], a few studies have been dedicated to the shape optimization [18]. Most existing seawalls can be classified as vertical, sloping, stepped, or curved types (these latter include the so-called ''non-overtopping" design) [19][20][21][22][23][24]. Furthermore, the seawall effectiveness is strongly dependent on the local deployment and hydrodynamic conditions, making direct comparisons delicate [18].…”