本文選題：斜坡堤　切入點(diǎn)：長(zhǎng)周期波　出處：《大連理工大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：斜坡堤通常由堤心石和護(hù)面塊體等材料構(gòu)成,是一種可以透浪透流的多孔介質(zhì)結(jié)構(gòu),在海岸工程中得到了廣泛的應(yīng)用。而在有較長(zhǎng)周期波浪的地區(qū),堤身空隙透浪將惡化港內(nèi)的泊穩(wěn)條件,雖然透射波高較小,但是由于其波長(zhǎng)較長(zhǎng),對(duì)港內(nèi)泊穩(wěn)的影響較大,不可忽視。 本文針對(duì)實(shí)際工程中典型的可滲透斜坡堤結(jié)構(gòu),選取合適的試驗(yàn)波浪條件,采用物理模型試驗(yàn)的方法,對(duì)斜坡堤在較長(zhǎng)周期波浪作用下的透浪特性進(jìn)行系統(tǒng)分析研究,并以此提出可供實(shí)際工程應(yīng)用的透浪系數(shù)計(jì)算公式。論文的主要研究?jī)?nèi)容為： (1)針對(duì)不同波高、周期條件進(jìn)行斜坡堤透浪試驗(yàn),研究波高、波陡等參數(shù)對(duì)防波堤透浪的影響； (2)變化堤前水深、防波堤寬度等,研究堤前水深、堤身寬度等對(duì)堤后滲透波浪的影響； (3)選取不同尺寸的堤心石進(jìn)行試驗(yàn),研究堤心石尺寸對(duì)防波堤波浪滲透的影響； (4)在上述試驗(yàn)研究成果的基礎(chǔ)上,結(jié)合理論分析,總結(jié)和比較國(guó)內(nèi)外有關(guān)防波堤透浪系數(shù)的計(jì)算公式,推導(dǎo)得出斜坡堤滲透波高系數(shù)的計(jì)算公式； (5)分析斜坡堤堤后波浪的周期變化和堤后波浪的頻譜變化。 試驗(yàn)結(jié)果表明：深水波陡Hi/(gT2)、堤心石相對(duì)寬度B/D以及堤前相對(duì)水深d/L等因素對(duì)斜坡堤透浪系數(shù)的影響較大,且將推導(dǎo)的計(jì)算公式與其他學(xué)者關(guān)于波浪透射的物理模型試驗(yàn)結(jié)果進(jìn)行比對(duì),結(jié)果較為吻合,可供工程設(shè)計(jì)參考與相關(guān)工作的進(jìn)一步研究。
[Abstract]:Slope breakwater usually consists of breakwater armor blocks and stone and other materials, is a kind of porous medium can flow through the wave structure, has been widely used in coastal engineering. While in the longer period waves in the wave will worsen the dyke gap in port berthing condition, although the transmission of lesser height however, because of its long wavelength, a great influence on the anchor stability, can not be ignored.
Permeable slope dike structure according to the actual engineering typical test, choosing proper wave conditions, using the method of physical model test and analysis system of wave transmission characteristics in longer period waves under the embankment, and then puts forward for the practical engineering calculation formula for wave transmission coefficient. The main research contents this is:
(1) the influence of wave height, wave steepness and other parameters on breakwater penetration is studied on different wave heights and periodic conditions.
(2) the change of embankment depth, width of breakwater, embankment depth, influence of dike width on the embankment after wave penetration;
(3) the influence of the size of the core stone on the wave penetration of the breakwater is studied by selecting the different sizes of the core stone.
(4) based on the above research results, combined with theoretical analysis, the calculation formulas of wave penetration coefficient of breakwaters at home and abroad are summarized and compared.
(5) the periodic variation of the wave after the slope embankment and the frequency spectrum of the wave after the embankment are analyzed.
Experimental results show that the deep water wave steepness Hi/ (gT2), influence of core B/D and the relative width of embankment relative water depth d/L and other factors on the permeability coefficient of the embankment slope is large, and the calculating formula of the physical model and other scholars about the wave transmission of the test results were compared, the result is consistent with the further study the reference for the engineering design and related work.

【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U656.2

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本文編號(hào)：1583919