摘要
文章介绍了英国标准BS6349、美国陆军工程兵团《海岸工程手册》、日本《港口设施技术标准》中直墙所受波谷力的计算原理、应用范围和参数选取,并借助工程实例与中国《港口与航道水文规范》中计算方法进行了对比。对于立波波谷力的计算,各国较常用的均为森弗罗公式,但在公式使用过程中应注意特征波高的选取。当d/L在0.139~0.2范围内时,应用中国规范的波谷力计算值介于美国与日本规范、英国规范之间,英国规范水平波谷力计算值偏大17%左右。当d/L在0.05~0.139时,中国规范浅水立波法计算值与美国及日本规范接近,均远低于英国规范值。由于英国规范采用了特征波Hmax与Ts计算,在波浪浅水变形较显著的工况下,计算可能偏离实际较大。美国规范及日本规范计算值则较中国规范偏低,偏低幅度根据相对水深及波陡等参数的不同而在5%~10%波动。
The calculation methods of the negative wave force upon the vertical walls under wave trough in BS6349,Coastal Engineering Manual of the United States and Technical Standards and Commentaries for Port and Harbour Facilities in Japan were introduced in this paper.Different methods were compared with that in the Code of Hydrology for Harbour and Waterway of China through specific project cases.For the calculation of the negative standing wave force,the Sainflou method is commonly used in many countries,but the selection of characteristic wave height should be paid attention to.When d/L is in the range of 0.139-0.2,the negative wave force calculated by Chinese code is between that of American&Japanese code and British code,and the calculated value of British code is more than 17%larger than that of Chinese code.When the d/L is between 0.05-0.139,the calculated value by shallow water standing wave method in Chinese code is close to that by American and Japanese code,which is far lower than that in British code.Due to the use of Hmax and Ts in the British code,the calculation may deviate from the reality greatly under the wave condition of obvious shallow water deformation.The calculated values by American code and Japanese code are lower than that of Chinese code,and the deviation fluctuates between 5%-10%according to relative water depth and wave steepness.
作者
邴晓
董丽红
BING Xiao;DONG Li-hong(Design Institute of Civil Engineering & Architecture of Dalian University of Technology Co. Ltd.,Dalian 116042,China)
出处
《水道港口》
2020年第4期404-409,共6页
Journal of Waterway and Harbor
基金
国家重点研发计划(2019YFC1407700)。
关键词
波谷力
特征波高
森弗罗
浅水立波
negative wave force
characteristic wave height
Sainflou
shallow water standing wave
