库区环境下某码头桩基受力特性及岸坡稳定分析  

Analysis on the Mechanical Characteristics of a Pile Foundation of Wharf and Stability of Bank Slope under the Reservoir Environment

作　　者：曾智高 朱信华 孙昌利[2] 陈富强[2] ZENG Zhigao;ZHU Xinhua;SUN Changli;CHEN Fuqiang(Management Office of Lechangxia Hydro-junction Project in Guangdong Province,Shaoguan 512200,China;Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510635,China)

机构地区：[1]广东省乐昌峡水利枢纽管理处,广东韶关512200 [2]广东省水利水电科学研究院,广东广州510635

出　　处：《广东水利水电》2018年第5期28-31,共4页Guangdong Water Resources and Hydropower

摘　　要：在库区岸坡环境的浮动码头,受水位升降影响,工作水位范围较大,同时,受到因泄洪产生的高流速等不利因素,因此受力特性十分复杂,至今没有一套成熟的计算方法。通过某库区内码头工程案例,采用数值手段,考虑了桩基布置的三维空间效应,并提出应按不同船型的组合对桩基荷载进行分配,得出了桩基受力的特性。最后提出位于岸坡的桩基应考虑桩土共同作用,采用了一种简单而实用的计算方法,在考虑码头的荷载情况下复核了边坡的安全稳定性,可为类似工程提供参考。Floating docks in the bank slope of the reservoir area are affected by the rise and fall of water level,and the working water level is often larger. At the same time,they are affected to unfavorable factors such as high flow velocity due to flood discharge.Therefore,the force characteristics are often very complicated,and there is no mature calculation method. In this paper,through the case of pier engineering in a reservoir area,numerical methods are used to consider the three-dimensional space effect of the pile foundation arrangement,and it is proposed that the pile foundation load should be distributed according to the combination of different ship types,and the stress characteristics of the pile foundation are obtained. Finally,it is proposed that the interaction of piles and soils should be considered. In this paper,a simple and practical calculation method is adopted. The safety and stability of the slope are reviewed under consideration of the loading conditions of the quay,which can provide reference for similar projects.

关 键 词：码头桩基 库区 边坡稳定 岸坡 有限元 

分 类 号：U656.3[交通运输工程—港口、海岸及近海工程]