双联块体稳定性试验研究及参数测定  

Experiment study on stability and parameter of double-link armor block

作　　者：陈汉宝[1] 戈龙仔[1] 王美茹[2] 刘颖辉[2] 

机构地区：[1]交通运输部天津水运工程科学研究所,天津300456 [2]中交第一航务工程勘察设计院有限公司,天津300222

出　　处：《水运工程》2013年第6期20-23,34,共5页Port & Waterway Engineering

摘　　要：运用1∶30比尺的物理模型在波浪水槽中试验验证了双联块体在不同水位、不同波浪条件下的稳定性。防波堤为抛石斜坡堤,单层8 t双联块体护面,现场有效波高达到5 m以上,波浪平均周期13.83 s,试验得到了稳定断面。测定了双联块体的稳定系数KD,形状系数c和块体空隙率P′,糙渗系数KΔ及每100 m2护面块体个数N。结果表明双联块体有随机单层安放、容易制作、稳定性好等特征,该块体及试验成果在工程中已经采用,效果良好,有很好的推广价值。Artificial concrete blocks are used for the armor layer of breakwater, withstanding rough sea, with the characteristics of good stability and easily installment. The double-link armor block is a new type one, which is adopted in a breakwater repairing engineering of power station. One scale 1 ： 30 physical model is performed in the wave flume, and the cross section with the double-link armor block is verified in stability under different water levels and wave conditions. The breakwater is mound sloping breakwater, armored by 8 t double-link armor block. The wave is above 5 m in prototype, and the average wave period is 13.83 s. A stable section is obtained by testing. The parameters of double-link armor block are obtained as coefficient of stability KD, form factor c, porosity of blocks P＇, roughness parameter of permeation KA and block number in 100 m2 N. It is shown that the double-link armor block has advantages including economizing material as one layer, random placing, easy manufacturing, as well as high stability, etc. The achievements of design and study have been applied to the engineering and achieved favorable effects. The double-link armor block is very worthy of popularizing.

关 键 词：双联块体 稳定性 试验 参数 

分 类 号：U656.31[交通运输工程—港口、海岸及近海工程]