混凝土铰链排护坡式海堤排体稳定性试验研究
发布时间：2019-06-12 09:34
【摘要】：通过波浪断面物理模型试验,对混凝土铰链排护坡式海堤排体在不同水深、波高、波周期、波浪类型及压载块体间距等条件下的稳定性展开研究,揭示了排体不同部位的失稳特点。试验结果表明:当水深一定时,波高或波周期越大,排体稳定性越差;不规则波作用对排体稳定性的影响显著大于规则波作用;排体失稳主要发生在首尾边缘部分,而内部稳定性较好,当排体采用首尾边缘压载块体厚度大、内部压载块体厚度小的结构形式时,仍具有良好的稳定效果;压载块体间距对排体稳定性、抗冲、变形和保护岸滩能力及垫层碎石质量的选取均具有一定影响,在实际工程中应综合考虑各因素合理确定。
[Abstract]:Through the physical model test of wave section, the stability of concrete hinged slope protection seawall under different water depth, wave height, wave period, wave type and ballast block spacing is studied, and the instability characteristics of different parts of row body are revealed. The experimental results show that when the water depth is certain, the larger the wave height or wave period is, the worse the stability of the row body is, and the influence of irregular wave action on the stability of the row body is significantly greater than that of the regular wave action. The instability of the row body mainly occurs at the edge of the head and tail, but the internal stability is better. When the thickness of the ballast block at the head and tail edge is large and the thickness of the internal ballast block is small, it still has a good stability effect. The distance between ballast blocks has certain influence on the stability of row body, impact resistance, deformation, beach protection capacity and the selection of cushion gravel quality, which should be reasonably determined by comprehensive consideration in practical engineering.
【作者单位】： 宁波中交水运设计研究有限公司;河海大学港口海岸与近海工程学院;滨海县水利局;
【基金】：国家自然科学基金重点项目(51339005) 江苏省水利厅科技项目(2013-55)
【分类号】：U656.314
，
本文编号：2497914
[Abstract]:Through the physical model test of wave section, the stability of concrete hinged slope protection seawall under different water depth, wave height, wave period, wave type and ballast block spacing is studied, and the instability characteristics of different parts of row body are revealed. The experimental results show that when the water depth is certain, the larger the wave height or wave period is, the worse the stability of the row body is, and the influence of irregular wave action on the stability of the row body is significantly greater than that of the regular wave action. The instability of the row body mainly occurs at the edge of the head and tail, but the internal stability is better. When the thickness of the ballast block at the head and tail edge is large and the thickness of the internal ballast block is small, it still has a good stability effect. The distance between ballast blocks has certain influence on the stability of row body, impact resistance, deformation, beach protection capacity and the selection of cushion gravel quality, which should be reasonably determined by comprehensive consideration in practical engineering.
【作者单位】： 宁波中交水运设计研究有限公司;河海大学港口海岸与近海工程学院;滨海县水利局;
【基金】：国家自然科学基金重点项目(51339005) 江苏省水利厅科技项目(2013-55)
【分类号】：U656.314
，
本文编号：2497914
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