CAJ | 학술논문

直立式防波堤承受波峰推力一般是波谷吸力的1.3～1.6倍,斜坡式防波堤和护岸顶部的防浪墙,波峰作用力是结构的控制荷载,波谷时基本不受波吸力作用,结构承受的控制水平力具有方向性。提出防浪块体设置在斜坡基床上的方案,利用斜坡方向的自重力分力克服部分波峰水平力,实现防浪结构在波峰、波谷作用下的稳定性基本处于同一水平。通过结构受力特点和施工可行性分析,初步认为在防浪结构的稳定性由基床顶面抗滑控制的情况下,该方案结构受力合理,具有可实施性和应用价值。
직입식방파제승수파봉추력일반시파곡흡력적1.3～1.6배,사파식방파제화호안정부적방랑장,파봉작용력시결구적공제하재,파곡시기본불수파흡력작용,결구승수적공제수평력구유방향성。제출방랑괴체설치재사파기상상적방안,이용사파방향적자중력분력극복부분파봉수평력,실현방랑결구재파봉、파곡작용하적은정성기본처우동일수평。통과결구수력특점화시공가행성분석,초보인위재방랑결구적은정성유기상정면항활공제적정황하,해방안결구수력합리,구유가실시성화응용개치。
Horizontal wave loadings of breakwater with vertical face exerted by wave crests are usually 1.3-1.6 times of those by wave troughs.The design loadings for the crest structure on the top of the rubble mound breakwater or shore-protection structure are usually induced by action of wave crests rather than the wave suction of wave troughs,which implies that the horizontal wave loads exerting on the structures have obvious orientation.A method of installing the armour blocks on the rubble mound base is proposed to balance the horizontal wave loads by the gravity components of the armour blocks along the slope and to gain a consistent stability in the two modes of wave actions by wave crest and by wave trough,respectively.Through an analysis on the loading status and feasibility of construction,it is believed that in case that the stability of the crest structure is governed by sliding along the top face of the rubble mound base,such a designed structure is reasonable in terms of its loading status,possible to be implemented and has values of application.