广东某码头过渡段结构稳定物理模型试验研究

Physical Model Test of Structural Stability of A Wharf Itd in Guangdong

直立式沉箱结构断面常用于结构性能要求较低区域,以降低工程造价。为向广东某海港码头结构过渡段提供结构稳定性依据,采用1∶40的正态物理模型,选择极端高水位、设计高水位、设计低水位、极端低水位共4组代表工况,从结构断面受力、堤顶越浪、护底块石位移量3个方面分析了直立式沉箱结构断面的稳定性。研究结果表明:实例工程码头过渡段采用直立式沉箱结构,工程造价低,且满足结构受力和泊稳要求,结构方案合理可行。

Vertical caissons are often used in areas with low structural performance requirements to reduce engineering costs. In order to provide the structural stability basis for the structural transition section of a harbour terminal in Guangdong,this paper adopts a normal physical model of 1 ∶ 40 and selects four representative working conditions of extreme high water level,design high water level,design low water level,and extreme low water level. The stability of vertical cross-section caisson structure is analyzed in three aspects: the structural cross-section stress,the dike top wave,and the bottom protection rock displacement. The results of the research show that the transitional section of the pier in the example project adopts the vertical caissons structure,the project cost is low,and the structural stress and mooring stability requirements are met. The structural scheme is reasonable and feasible.