纸质出版日期:2015,
网络出版日期:2015-6-25
扫 描 看 全 文
引用本文
阅读全文PDF
基于Biot渗流固结理论和水波绕射理论,应用特征函数展开法,推导了对应透空复合圆柱的绕射波势和波浪引起的海床内渗流压力分布的解析解式,由此计算了作用于固立透空复合圆柱底部上由波浪渗流压力所导致的浮托力和倾覆力矩,并与水平和垂直绕射波浪力和力矩进行了相应比较。计算结果表明,复合柱上部圆柱侧表面的透空性对水平方向的波浪直接作用有明显的减弱效应,对波浪渗流倾覆力矩也有一定的减弱效应,而对垂直方向的波浪直接作用及波浪渗流浮托力影响较小。海况条件和复合圆柱几何条件等因素的相对变化对波浪渗流作用均存在一定的影响,其中对渗流倾覆力矩的影响更为明显。在一定条件下,波浪渗流作用与绕射波浪作用可以具有相同的量级。
Based on Biot seepage consolidation theory and wave diffraction theory, the analytical solutions to the diffracted water wave potentials and the waveinduced seepage pressures referring to porous compound vertical circular cylinder resting on permeable elastic seabed are derived by applying the eigenfunction expansion approach, and then the wave-induced lift force and overturn moment caused by the seepage pressure on the bottom of compound vertical circular cylinder are accordingly evaluated and are compared with direct diffracted wave force and moment. The results demonstrate that the porosity of the lateral surface of the circular column resting on a circular base will lead an obvious reduction in direct horizontal wave loads on compound cylinder and certain reduction in seepage overturn moment on the bottom of compound cylinder, and having slight influence on direct vertical wave loads and waveinduced seepage uplift force on compound cylinder .The variation of ocean condition and structure geometry condition may have some influence on waveinduced seepage loads, especially on seepage moment. In certain condition, wave-induced seepage loads may have same order of magnitude as the direct wave loads.
392
浏览量
571
下载量
0
CSCD
相关文章
相关作者
相关机构