斜坡堤护面稳定性的试验研究

Experiment on stability of protection surface on slope breakwater armor

为了验证某港口防波堤护面的稳定性,在港池内对堤头和附近堤身建立物理模型,通过波高采集装置得到工程区域的特征波高分布,用目测观察法计算不同区域斜坡堤护面块体的失稳个数并描述越浪情况。结果表明:四角锥体护面块体在斜向波入射时,其稳定性较波浪垂直入射要好,堤身满足稳定性要求,该物理模型较好的反应了波浪对结构物影响的实际情况。根据试验结果在原设计方案的基础上进行优化,通过试验验证得到优化方案符合工程要求,优化方案可行。

In order to verify the stability of rubble-mound breakwater of a harbor , the paper established physical model and obtained wave height distribution within engineering area by using the height wave ac -quisition device .Visual observation method is used to get the instability number of slope breakwater ar -mor stones of different areas and also to describe the situation of wave overtopping .The results show that when wave incomes obliquely , the stability is better than wave incomes normally , the dam body satisfies the requirement of stability .The physical model reflected the fact well .According to the experimental re-sults, the original program was optimized and also met the requirement of stability .