作用在沟槽内管道上水动力载荷的研究

Study of hydrodynamic loadings on pipelines in open trenches

介绍了波流作用在海底三组沟槽内管道上水动力载荷的实验结果；为扩充其应用范围，推导引入了一个无量纲沟形系数（α），实验结果以α－Ｋｃ－Ｃ＿Ｄ、Ｃ＿Ｍ、Ｃ＿Ｌ形式表达，对工程应用提供了极大方便．介绍了用此系数所作的对这种受掩护管道上水动力状态的几则预测．

The results of three test programmes studying the hydrodynamic loading on sheltered marinepipelines are presented.These results are expressed as α-K_C-C_D、C_M、C_L( α is a dimensionlesstrench function ),which has provided most convenience for engineering. The paper also presentssome forecasts concerning the fluid loads on pipelines in open trenches by α.