水泥搅拌桩复合地基+密排灌注桩组合式板桩结构

摘要

For the construction of the wharf on the soft ground may cause structural cracking or even slip instability and other issues,we discuss the characteristics of the application of the three major wharf types at home and abroad on the soft soil foundation.Based on the design of Nantong Port,which is combined with the geological conditions of the project area of the terminal structure of the type of comparison study,we put forward a type of structure-cement mixing pile composite foundation+closely packed piles composite, and analyze its mechanical properties.The results show that the composite piles can not only solve the problem of the construction of the piles on the weak soil foundation,but also have the advantages of not occupying the pond,the construction speed,the low cost and the influence of the wind and waves.%针对软基上建造码头可能会出现结构开裂甚至发生滑移失稳等问题,对国内外三大码头结构形式在软土地基上应用的各自特点进行论述,并依托南通港某码头的工程设计,结合工程区地质条件进行码头结构形式的比选,推出一种水泥搅拌桩复合地基+密排灌注桩组合式板桩结构,并分析其计算特点.研究表明,该组合式板桩结构不但可解决制约软弱土地基上建设板桩码头的难题,且具有不占用港池、施工速度快、造价低、受风浪影响小等优点.