移动大型钢结构物的模块平板运输车对码头强夯地基的影响

Impact of Module Flat Bed Truck on Dynamic Compaction Foundation of Wharf while Shifting Large-scale Steel Structures

近几年,在国内大型海洋工程结构物建造过程中,已逐步利用模块平板运输车来移动大型钢结构物。该技术具有操作简单、工作效率高、移动速度快和环境要求低等优点,但在大型结构物的移动过程中,模块平板运输车可能导致地基沉陷甚至破坏。结合国际镍矿项目大型结构物的移位过程,重点分析码头强夯地基的特性、模块平板运输车的结构及液压控制系统的特点;通过有限元建模分析和计算,研究模块平板运输车对码头强夯地基的影响。

For recent years,more and more module flat bed trucks are adopted to shift large-scale steel structures while fabricating large-scale marine engineering structure in China.Its advantages include simple operation,high efficiency,quick shifting and low environmental restriction.But the operation of module flat bed truck may result in foundation subsidence even breakage while shifting large-scale structures.By combining with the displacement of large-scale structure for international nickel minerals project,the characteristics of dynamic compaction foundation,structure of module flat bed truck and feature of hydraulic control system are analyzed deeply.Through the analysis and calculation of finite element modeling,the impact of module flat bed truck on dynamic compaction foundation of wharf is researched.