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本文对已建高桩码头叉桩桩帽断裂事例作了理论论证和计算分析。该码头自施工起已连续经历了七年的细致观测,计算结果与实际观测基本一致,说明这座高桩码头叉桩桩帽断裂是由于基床棱体与后方大量抛填砂石使得土层产生沉降所致。通过对土层沉降,桩土间相互作用和叉桩内力变化的计算分析,可以了解到叉桩应力发展直至断裂的大致过程,从而为海岸工程的设计、施工以及维护提供了分析方法和参考数据。
In this paper, the paper has made a theoretical proof and calculation analysis on the broken cases of the pile cap of the piled wharf. Since the construction of the pier has been going through seven years of careful observation, the calculation results and the actual observation is basically the same, indicating that the high-pile wharf fork pile cap breakage is due to the base of the prism and the rear of a large number of thrown sand gravel makes the soil layer Subsidence caused. Through the calculation and analysis of the settlement of soil, the interaction between pile and soil and the change of the internal force of the fork piles, the general process of the stress development of the fork piles up to the fracture can be understood, which provides the analytical method and reference data for the design, construction and maintenance of the coastal engineering .