多级重力式码头的稳定性分析  

Stability Analysis of Multilevel Gravity Wharf

作　　者：钟利[1,2] 何光春[1] 刘红[1] 匡仁钢[1] 

机构地区：[1]重庆交通大学河海学院,重庆400074 [2]湖北省交通规划设计院,湖北武汉430051

出　　处：《港工技术》2012年第6期21-24,共4页Port Engineering Technology

基　　金：教育部科学技术研究重点项目(210176)

摘　　要：结合重庆纳溪沟多级重力式码头的工程实例,在码头结构的稳定性分析中,将上级衡重式挡土墙的竖向地基应力和横向摩擦力视为超载,并转化为土压力作用在下级挡土墙上,运用可靠度方法探讨上级平台的宽度对下级码头稳定性的影响。多级重力式码头下级平台的稳定性与该平台的宽度和墙高比(B/H)紧密相关,B/H值越小,上级码头平台对下级码头平台稳定性的影响就越大;反之B/H值越大,其影响就越小。本研究基于地基应力分析多级重力式码头稳定性的计算方法,可为多级重力式码头结构的设计提供参考。Based on the multilevel gravity wharf of Chongqing Naxigou area, the vertical foundation stress and horizontal friction of the higher-level counterweight retaining-wall are regarded as the overload in the stability analysis of the wharf structure, and converted to the earth pressure on the lower-level retaining-wall. The reliability method is applied to find the influence of the width of higher-level platform on the stability of the lower- level wharf. As for the multilevel gravity wharf, the stability of lower-level platform is closely related to the ratio of the platform width （B）and wall height （H）. The smaller B/H is, the greater the influenee of the higher-level platform will be. Contrarily, the greater B/H is, the smaller the influence will be. The stability calculation of multilevel gravity wharf is analyzed on the basis of foundation stress, which will provide references for similar design.

关 键 词：多级重力式码头 地基应力 抗倾稳定性 抗滑稳定性 可靠度 

分 类 号：U656.111[交通运输工程—港口、海岸及近海工程]