深水斜坡式防波堤结构形式及护面块体稳定性试验研究

Experimental Study on Structure Types and Armor Block Stability of Deepwater Mound Breakwaters

近年来在一些深水大型港口的防波堤设计中发现，对于外坡设计低水位以下1．0～1．5倍设计波高之间的护面块体，按照现行行业规范确定其稳定重量时，在波浪物理模型试验中往往不能满足稳定性要求，而需提高块体自重，但增加多少合适只能通过物模试验来确定，并没有一个明确的标准作为设计依据。针对这一问题，文中通过较为系统的物理模型试验，得出了所研究的扭王字块体、扭工字块体在临界稳定状态下的块体稳定系数kD，并推荐了可供设计参考采用的计算值。

In recent years, in the process of designing breakwaters for some large deepwater ports, it is found that armor blocks, which are between the design wave heights of 1-1.5 times below the outside design low water level, cannot always meet the stability requirements in the physical model tests when according to the current standards to determine its stable weight. It needs to increase the weight of the blocks, but the suitable number of blocks can only be decided through physical model tests and there is not a clear standard as the basis of design. Aiming at this problem, this paper studies accropodes and doloss- es through the systematic physical model test have got the block stability coefficient in critical stable state and recommends calculated values for the designs.