基于灰色关联度的行车荷载作用下管道变形影响研究  

Research on Influence of Traffic Load on Pipeline Deformation Based on Grey Correlation Degree

作　　者：李昌宝 LI Changbao(Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200083,China)

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海200083

出　　处：《建筑施工》2021年第4期652-654,共3页Building Construction

摘　　要：为研究作用于地下管道之上的行车荷载对其变形产生影响的问题,以南宁某景观项目为工程背景,应用Midas GTS软件建立三维有限元弹塑性模型,分析了管道在行车动荷载作用下的动力响应。基于灰色关联度因素分析法,研究不同影响因素在管道桩基防护方案中的关联程度。研究表明:采用桩基防护可以有效降低地面行车荷载对管道的变形影响,可达到保护管道的目的;桩间距在桩基防护方案中的关联程度最大,在实际设计过程中可重点调整桩间距以达到设计要求。To study the influence of traffic load on the deformation of underground pipeline, taking a landscape project in Nanning as the engineering background, a 3 D finite element elastic-plastic model is established by using Midas GTS software, and the dynamic response of the pipeline under the action of traffic load is analyzed. Based on the grey correlation factor analysis method, the correlation degree of different influencing factors in the pipeline pile foundation protection scheme is studied. The research shows that the pile foundation protection can effectively reduce the influence of ground traffic load on the pipeline deformation, and can achieve the purpose of protecting the pipeline;the pile spacing has the greatest correlation in the pile foundation protection scheme, and the pile spacing can be emphatically adjusted to meet the design requirements during the actual design process.

关 键 词：行车荷载 管道 有限元 灰色关联度 

分 类 号：TU99[建筑科学—市政工程]