冰力模型实验

The Model Test of Ice Forces

本文首先简述了冰力模型实验的概况,然后介绍了在国内第一座冰池实验中进行的首次冰力模型实验——渤海辽东湾抗冰平台冰力模型实验的设备、模型冰制取技术和实验结果。实验中,冰排的破坏符合一般规律,它预示了现场冰的破坏现象;冰力值稍低于计算值,但更合理,可供设计参考;冰力谱中存在着明显的主频率,它集中于0.8HZ左右。

Since the rapid development of the offshore petroleum exploitation in the Bohai Gulf , the ice model test has become more important in the design of structure of platforms located in the ice infested water. In the first part of the papet, a general review of the ice model test technique is given briefly . The second part of the paper introduces the model test of sea ice forces on a monopod ice resistant platformin the Liaodong Bay , It was carried out in the first ice model tank in the country,which was completed and started operation in 1987 at the Tianjin University . The introduction includes the facilities,the model ice technology and some of the test results, including the failure modes of ice sheet in front of the structure , the maximum values and time variations of the ice forces and their characteristic frequencies . The test results are compared to both the field observation and theoretical analysis, and some comments are presented.