复杂地质条件下的码头桩基设计及结构位移控制

针对高桩码头经常遇到的岩石裸露或覆盖层较浅、溶岩发育及抛石深厚等复杂地质条件下的桩基设计的经济合理性问题,结合已成功实施的工程案例,通过对岩石的物理力学特性等进行分析研究,提出复杂地质条件下的桩基设计要点。由于稳桩、沉桩及后续处理需要,码头采用全直桩结构,为满足正常使用要求,提出减少码头结构水平位移的有效措施。本文的工程实例对类似复杂条件下高桩码头设计具有指导意义。

Design of wharf pile foundation under complex geological conditions and control measures of structural displacement

For the economic rationality of pile foundation design under complex geological conditions,such as exposed rock,shallow covering layer,karst development and deep layer of riprap,we present the design points of pile foundation under complex geological conditions through the analysis and research on the physical and mechanical properties of rocks combined with successful engineering cases.At the same time,due to the need of stable pile,sinking pile and subsequent treatment,the whole pile structure is adopted in the wharf.In order to meet the requirement of normal use,we put forward the effective measures to reduce the horizontal displacement of the wharf.The engineering example of this paper is guiding significance for the design of high pile wharf under similar complicated conditions.