本文選題：圓弧板　切入點(diǎn)：透空式防波堤　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】：傳統(tǒng)的防波堤消浪效果較好,但也有不適用于深水、造價(jià)高昂等缺點(diǎn)。透空式防波堤克服了以上的缺點(diǎn),并且對(duì)環(huán)境友好,已越來(lái)越多的得到人們的關(guān)注。然而,透空式防波堤也有其缺點(diǎn),由于部分波浪能量可以透過(guò)防波堤,導(dǎo)致堤后的波高較大,尤其是在長(zhǎng)波的作用下其消浪效果并不理想。 圓弧式結(jié)構(gòu)受力特性較好,且對(duì)于消波有一定效果。本文結(jié)合透空式防波堤與圓弧式結(jié)構(gòu)的特點(diǎn),提出了一種多層圓弧板透空式防波堤,并對(duì)其水動(dòng)力特性進(jìn)行了二維的物理模型試驗(yàn)。 通過(guò)與多層水平板透空式防波堤消浪效果的比較,驗(yàn)證了多層圓弧板透空式防波堤的消浪效果更好。同時(shí),試驗(yàn)還研究了圓弧板的層數(shù)、相對(duì)寬度、板間距、頂層板的淹沒(méi)深度和圓弧的高度對(duì)該結(jié)構(gòu)形式的防波堤消浪效果的影響。 試驗(yàn)發(fā)現(xiàn),在布置合理的情況下,圓弧板透空式防波堤的消浪性能明顯較水平板透空式防波堤更為優(yōu)秀。研究結(jié)果還表明,圓弧板的層數(shù)、相對(duì)寬度、頂層板的淹沒(méi)深度、板間距和圓弧板的高度均對(duì)圓弧板透空式防波堤的消浪性能有影響。另外,本文還對(duì)圓弧板和水平板的受力特性進(jìn)行了比較分析,研究結(jié)果表明,在入水深度相同時(shí),二者所受的豎向波浪力大小相當(dāng)。
[Abstract]:The traditional breakwater has good effect, but it is not suitable for deep water and high cost. The porous breakwater overcomes the above shortcomings, and is more and more environmentally friendly. However, it has been paid more and more attention to. Because some wave energy can pass through the breakwater, the wave height behind the breakwater is larger, especially under the action of long wave, the effect of wave elimination is not ideal. The stress characteristic of circular arc structure is good, and it has certain effect on wave dissipation. In this paper, combined with the characteristics of porous breakwater and circular arc structure, a kind of multilayer circular plate perforated breakwater is put forward. Two-dimensional physical model tests were carried out on its hydrodynamic characteristics. By comparing with the wave dissipation effect of the multilayer horizontal plate perforated breakwater, it is proved that the multilayer arc plate permeable breakwater has better effect of wave elimination. At the same time, the number of layers, the relative width and the plate spacing of the arc plate are also studied. The influence of the submerged depth of the top floor plate and the height of the arc on the wave dissipation effect of the breakwater. It is found that the wave attenuation performance of circular plate perforated breakwater is better than that of horizontal plate permeable breakwater under reasonable arrangement. The results also show that the number of layers, relative width, and the submerged depth of the top layer of the circular plate are better than those of the horizontal plate. The distance between the plates and the height of the circular plate have an effect on the wave attenuation performance of the perforated breakwater. In addition, the stress characteristics of the circular plate and the horizontal plate are compared and analyzed. The vertical wave forces on both sides are equal.
【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)：1562006