孙天霆, 王树鹏, 潘军宁, 王登婷, 刘清君. 考虑局部冲刷的跨海桥梁桩基基础波流力[J]. 水科学进展, 2019, 30(6): 863-871. DOI: 10.14042/j.cnki.32.1309.2019.06.010
引用本文: 孙天霆, 王树鹏, 潘军宁, 王登婷, 刘清君. 考虑局部冲刷的跨海桥梁桩基基础波流力[J]. 水科学进展, 2019, 30(6): 863-871. DOI: 10.14042/j.cnki.32.1309.2019.06.010
SUN Tianting, WANG Shupeng, PAN Junning, WANG Dengting, LIU Qingjun. Study on wave-current force for pile foundation of sea-crossing bridge considering local scouring[J]. Advances in Water Science, 2019, 30(6): 863-871. DOI: 10.14042/j.cnki.32.1309.2019.06.010
Citation: SUN Tianting, WANG Shupeng, PAN Junning, WANG Dengting, LIU Qingjun. Study on wave-current force for pile foundation of sea-crossing bridge considering local scouring[J]. Advances in Water Science, 2019, 30(6): 863-871. DOI: 10.14042/j.cnki.32.1309.2019.06.010

考虑局部冲刷的跨海桥梁桩基基础波流力

Study on wave-current force for pile foundation of sea-crossing bridge considering local scouring

  • 摘要: 跨海桥梁桩基基础所受的波流荷载是跨海桥梁设计中重点考虑的荷载之一,实际工程中波流力的计算多参考《港口与航道水文规范:JTS145—2015》中推荐的单桩桩基基础波流力计算方法,未合理考虑局部冲刷形状的影响。以港珠澳大桥为例,在桩基基础波流力和冲刷试验结果的基础上,通过对计算模型中流速、CDCM等参数的选取进行修正,提出了考虑局部冲刷形状的桩基基础波流力计算方法,在保证工程安全性的同时兼顾了工程的经济性,并成功应用于港珠澳大桥桥梁桩基的设计中。

     

    Abstract: Wave and current loads on pile foundation of sea-crossing bridges have always been given priority in the design of sea-crossing bridges. The wave-current force in practical projects is usually obtained by the computing method of wave-current force for single pile foundation recommended in the Code of Hydrology for Harbour and Waterway (JTS145-2015),without reasonable consideration of the influence of local scour shape. In this study,Hong Kong-Zhuhai-Macao Bridge has been taken as an example. Based on physical model test results,a calculation method of wave-current force for pile foundation considering local scour patterns is proposed by modifying the selection of such parameters as velocity,CD and CM in the calculation model. The proposed method,which guarantees the project safety and can be cost-effective as well,has been successfully applied to the design of pile foundation of Hong Kong-Zhuhai-Macao Bridge.

     

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