水道港口2011，Vol.32Issue(6)：381-388,8.
船舶尾流冲刷作用下抛石基床块石稳定性计算方法研究
Study on stability calculation method of rubble bed stone under scouring effect of ship stern flow
摘要
Abstract
Ship stern flow is one of the key factors that lead to scouring damage of gravity wharf's rubble bed.The effect of ship stern flow on rubble bed stability is not estimated in the code of harbor, coastal engineering design in China.Through summarizing,comparing and analyzing the research results on ship's propeller jet velocity distribution at home and abroad,the distribution law was obtained.A stability calculation method of rubble bed stone under the scouring effect of propeller jet was proposed and used to analyze the scouring effect on the rubble bed of a certain gravity type caisson.The calculation results show that the axial velocity in the zone of established flow has more significant scouring effect on rubble bed than the one in the zone of flow establishment,and the scouring effect could not be neglected if the propeller's rotation axis is not higher than the top surface of rubble bed by two times of propeller diameter.关键词
船舶尾流/螺旋桨射流/流速分布/抛石基床/稳定重量Key words
ship stern flow/ propeller jet/ velocity distribution/ rubble bed/ stable weight分类
交通工程引用本文复制引用
王元战,梁鹏飞,张宝华,田双珠..船舶尾流冲刷作用下抛石基床块石稳定性计算方法研究[J].水道港口,2011,32(6):381-388,8.基金项目
国家自然科学基金(50979069) （50979069）
天津市科技支撑计划重点项目(10JCYBJC03400) （10JCYBJC03400）
天津市应用基础及前沿技术研究计划(10SYSYJC27300) （10SYSYJC27300）
