基于CAESARⅡ的埋地热油管道应力计算  

CAESARII-based stress calculation for buried hot oil pipeline

作　　者：杜明俊 王伟[1] 张振庭 熊新强 张卫兵 

机构地区：[1]中国石油集团工程设计有限责任公司华北分公司,河北任丘062522

出　　处：《油气储运》2012年第8期597-600,648,共4页Oil & Gas Storage and Transportation

摘　　要：对于埋地管道,土壤和管道的相互作用是管道应力分析的重要组成部分,研究管道周围土壤的力学特性至关重要。基于CAESARⅡ应力软件建立了合理的埋地热油管道应力分析模型并进行数值计算,分析了操作温度与安装温度差值、管道埋深、土壤内摩擦角等参数对管道局部推力和位移的影响。研究表明:管道内外温差、埋深及土壤内摩擦角对埋地管道地上和地下部分的应力、位移、固定墩推力的大小和方向影响较大,设计时必须对土壤参数进行准确界定,以期达到理想效果。For buried pipelines,the interaction between soil and pipeline is a main composition of stress analysis for pressure pipeline,so the study on the mechanical properties of the soil surrounding the pipeline is of great importance.Based on CAESAR II stress software,a reasonable analysis model for buried pipeline is set up,and an numerical calculation is made.The impact of operation temperature,installation temperature difference,buried depth of pipelines,internal friction angle,and other parameters on local pushing force and displacement of pipeline are analyzed.Study results show that the internal and external temperature differences of pipeline,buried depth,and internal friction angle of soil have greater impact on the magnitude and direction of stress,displacement,pushing fore of pipe anchor block overground or underground pipeline,so when in design,the soil parameters must be defined correctly to achieve satisfactory results.

关 键 词：埋地管道 热油管道 CAESAR Ⅱ软件 应力计算 

分 类 号：TE973[石油与天然气工程—石油机械设备]