新型人工岛护坡抗冰结构的系统设计与应用

摘要

In Bohai Bay, temperature is low and icing period is long in the winter, so that the large ice blocks impact slope of the man-made island due to environmental driving load and endanger oilfield engineering and personal safety, while the exist-ing revetment structure is so difficult to meet this demand under the extra environmental condition. Therefore, a new man-made island revetment andrnanti-ice structure, namely umbrella block, is put foreword and the technical parameters of the new kind of revetment block are determined for the different water depths. Model test installation and field application results have shown that the new type of anti-ice structure can resist the large ice impact effectively, give economic efficiency obviously and have very good promotion value, compared with the existing man-made island revetment structure.%渤海湾冬季温度低,海冰结冰期长,大型冰块在环境驱动力的驱动下冲击人工岛护坡,危及油田工程和人身的安全,而现有的护坡结构形式很难满足特殊海况的要求,因此提出了一种新型人工岛护坡抗冰结构——伞型块体,并确定了这种新型护坡块体在不同水深下的技术使用参数.模型试验安装与现场应用结果表明,与现有的人工岛护坡结构相比,这种新型抗冰结构形式能够很好地抵抗大型冰块的冲击,经济性显著,具有很好的推广价值.