摘要
通过模型试验研究了在斜向波浪作用下斜坡沙床上海底管线所受波浪力的变化规律。通过改变相对波高、K_c数以及管线与斜坡坡脚线夹角θ,测量管线中间位置截面表面所受波浪点压力和管线整体三维总力。试验结果表明,改变相对波高、K_c数和管线与斜坡坡脚线夹角,管线表面所受点压力和总力均呈现相应的规律,且θ对管线总力影响最大;管线所受波浪点压力表现为"正弦"曲线规律,局部表面受力在一定程度上反映了管线整体受力变化。
A model test is used to research the resistance characteristics of the pipeline. Through the oblique wave action on the slope of submarine pipelines, eight points wave pressure and the total force of pipeline are measured in the three directions on the slope bottom edge of the middle section at different relative wave height H/h, Kc number, and the Angle 0. The experimental results show that in different relative wave height H/h, Kc number, 0, wave point pressure and the total force of the pipeline are regular, among which theta has the greatest influence on the total force, and wave point pressure of the pipeline presents ＂sine＂ curve variation and local maximum force condition is not consistent with that of the overall, therefore, it should be weighed when considering the safety of submarine pipelines.
出处
《长沙理工大学学报（自然科学版）》
CAS
2016年第3期58-64,共7页
Journal of Changsha University of Science and Technology:Natural Science
基金
国家自然科学基金资助项目(41176072
51239001
51309038)
关键词
海底管线
波浪力
波浪点压力
总力
submarine pipeline
resistance characteristics
wave pint pressure
overall force
