论文部分内容阅读
本文研究了怎样应用有限元方法求解在波浪场作用下海底三维渗流对海上重力式建筑物的作用荷载。提出了符合问题物理意义的H_0~(1)(Kr)、exp(Kz)及H_0~(1)(Kr)exp(Kz)等衰减类型的无限元的应用,采用有限元和无限元对整个渗流域进行数值模拟,在已知波浪场的情况下,求解建筑物底面上的渗流作用力。 本文的结果表明,海上大型重力式建筑物基底上的渗压荷载是一项不容忽视的设计荷载。欲全面地考虑海洋建筑物的环境条件及完善与之相适应的设计条件,就必须考虑建筑物底部的渗流作用问题。
This paper studies how to apply finite element method to solve the effect of submarine three-dimensional seepage on the gravity structures on the sea under wave field. The application of finite element such as H_0 ~ (1) (Kr), exp (Kz) and H_0 ~ (1) (Kr) exp (Kz) which meet the physical meaning of the problem is presented. The finite element and infinite element Seepage field numerical simulation, in the case of the known wave field, solve the seepage force on the bottom of the building. The results of this paper show that the seepage pressure on the large-scale offshore gravity building is a design load that can not be neglected. To fully consider the environmental conditions of marine buildings and improve the design conditions that suit them, we must consider the seepage of the bottom of the building.