遮帘式板桩码头力学性能分析

Mechanical properties analysis of covered type of sheet pile wharf

运用通用岩土工程有限元软件PLAXIS3D建立遮帘式板桩码头模型,对影响板桩码头结构受力的主要参数进行分析。结果表明:土体参数对板桩结构各构件内力和位移的影响十分显著;加固锚碇结构后方土体,有利于减小后方堆载对板桩结构的影响;剩余水压力产生的结构内力不可忽视,应采取可靠措施降低板桩码头剩余水压力;板桩码头的施工工序对构件内力起到至关重要的作用;结构内力分析应结合实际充分考虑施工工序影响,以保证结构安全。

In this paper,the model of curtain type sheet pile wharf was established by general geotechnical FEA PLAXIS 3D,and the main parameters affecting the loading of sheet pile wharf structure were analyzed.The results show that:the internal force and displacement of the sheet pile structure are affected observably by the soil parameters;the soil behind the anchor structure can be reinforced in order to reduce the influence of the surcharge load on the sheet piles;the internal force caused by the residual water pressure should not be neglected,and the reliable measures should be used to decrease the residual water pressure;the construction procedure of the sheet pile wharf is important for the structural internal force;the effect of construction procedure should be considered in the analysis of internal force of structure which is conducive to ensure the safety of the structure.