岩基上坞式闸室结构受力分析及其优化设计  

Stress analysis and optimization design of dock lock chamber on rock foundation

作　　者：张志飞[1] ZHANG Zhi-fei(CCCC Water Transport Consultants Co.,Ltd.,Beijing 100007,China)

机构地区：[1]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2023年第2期141-145,158,共6页Port & Waterway Engineering

摘　　要：对于水头较高的船闸工程,坞式结构存在抗滑稳定性不足、结构应力较大的缺点。为此,提出坞式结构的3组优化方案:加大截面尺寸、增加悬臂、泡沫轻质土置换回填土。通过定义抗滑影响因子δ分析3组优化方案对抗滑稳定性的影响,利用有限元模型并引入截面尺寸的解析算法分析3组优化方案的结构应力变化。结果表明,增加悬臂方案对抗滑稳定性的优化效果最为明显,泡沫轻质土置换方案对于改善结构内力更为经济合理。For the ship lock project with high water head, the dock structure has the disadvantages of insufficient anti-sliding stability and large structural stress. In this paper, three groups of optimization schemes for dock structure are proposed: increasing the section size, adding the cantilever, and replacing the backfill with foamed mixture lightweight soil. By defining the anti-sliding influence factor δ,the influence of three groups of optimization schemes on anti-sliding stability is analyzed. Using the finite element model and introducing the analytical algorithm of section size, the structural stress changes of three groups of optimization schemes are analyzed. The results show that the optimization effect of anti-sliding stability is the most obvious when the cantilever is added, the scheme of foamed mixture lightweight soil replacement is more economical and reasonable for improving the internal force of the structure.

关 键 词：坞式结构 抗滑影响因子 泡沫轻质土 

分 类 号：U641.2[交通运输工程—船舶及航道工程]