2023年3月收稿日期:2022—10—25作者简介:张晓峰(1971—),女,高级工程师,主要从事水利工程规划设计工作。摘要:管道与坡土相互作用问题是饮水工程中常见的工程问题,会直接影响管道安全施工和运行,研究坡土管道相互作用机制具有重要意义。以山丹县饮水管道工程为例,通过ABAQUS有限元分析了不同坡度以及荷载方向对土壤管道相互作用荷载的影响,得到了抗力位移关系曲线变化规律。研究结果表明,管道离地面越远土壤约束就越高,倾斜的坡面大大增加了土壤对管道移动的阻力,因为管道上部有更多土壤来抵抗管道朝该方向移动。若管道埋得足够深,土壤破坏机制不会延伸到地面,则地面坡度的影响可以忽略。此外,向左(上坡)倾斜管道的峰值力远高于向右(下坡)倾斜管道的峰值力。关键词:饮水工程;管土作用;数值模拟;抗力位移曲线中图分类号:TV698.1+1;TV67文献标识码:A文章编号:1004-7328(2023)03-0070-04DOI:10.3969/j.issn.1004-7328.2023.03.020山丹县饮水工程管道坡体相互作用效应分析张晓峰(兰州市水电勘测设计院有限责任公司,甘肃兰州730030)AnalysisonPipeline-SlopeInteractionEffectofDrinkingWaterProjectinShandanCountyZHANGXiao-feng(LanzhouHydropowerSurveyandDesignInstituteCo.,Ltd.,Lanzhou730030,China)Abstract:Theinteractionbetweenpipelineandslopesoilisacommonengineeringproblemindrinkingwaterproject,whichwilldirectlyaffectthesafeconstructionandoperationofpipe.Therefore,thestudyoftheinteractionmechanismbetweenslopesoilandpipelineisofgreatsignificance.TakingthedrinkingwaterpipelineprojectinShandanCountyasanexample,theeffectsofdifferentslopesandloaddirectionsonthesoilpipelineinteractionloadareanalyzedbyABAQUSfiniteelementmethod,andthevariationlawofforcedisplacementcurveisobtained.Theresultsshowthatthefurtherthepipelineisfromtheground,thehigherthesoilconstraintis.Theinclinedslopegreatlyincreasesthesoilresistancetothepipelinemovement,becausethereismoresoilabovethepipelinetoresistthemovementofthepipelineinthatdirection.Ifthepipelineisburieddeepenoughthatthesoilfailuremechanismdoesnotextendtothesurface,theeffectofgroundslopecanbeignored.Inaddition,thepeakforceofthepipelineinclinedtotheleft(uphill)ismuchhighertha...