基于多元数据融合的漠大一线高风险融沉管段安全状态分析  

Safety Assessment of High Risk Thawing Settlement Pipeline in Mo-Da Line Based on Multi-Source Monitoring Data

作　　者：孙晁 黄微 燕冰川 陈健 庄楠 Sun Chao;Huang Wei;Yan Bingchuan;Chen Jian;Zhuang Nan(Pipechina North Pipeline Company,Beijing 100000,China;National Engineering Research Center for Pipeline Safety/MOE Key Laboratory of Petroleum Engineering/Beijing Key Laboratory of Urban Oil and Gas Transmission and Distribution Technology,China University of Petroleum-Beijing,Beijing 102200,China)

机构地区：[1]国家石油天然气管网集团有限公司,北京100000 [2]中国石油大学(北京)油气管道输送安全国家工程研究中心石油工程教育部重点实验室城市油气输配技术北京市重点实验室,北京102200

出　　处：《山东化工》2023年第21期229-232,共4页Shandong Chemical Industry

摘　　要：随着我国数字化管道建设的不断推进,对管道数据的应用要求越来越高,目前挖掘管道数据深度价值的应用案例相对较少。针对管道数据存在关联性不强、利用率低等问题,本文基于国内冻土区埋地管道最完整长周期多元监测数据,对漠大一线融沉风险段开展分析及安全评价,从时间尺度和空间尺度分析了融沉风险段管道力学状态和土壤温度场的变化规律及发展趋势,探明了最危险的监测管段,给出了合理的管道运维建议。得到主要结论如下:基于多元数据对管道的安全状态进行评价是一种行之有效的方法;管道的沉降量受到大气温度和土壤含冰量的综合影响,管周土壤含冰量较多地段,管道应力值相应较大;目前漠大一线全线处于安全可控状态,但需长期跟踪监测管道状态的变化,并预先做好维修及处置方案。With the continuous advancement of digital pipeline construction in China,the application requirements for pipeline data are getting higher and higher.At present,there are relatively few application cases for mining the deep value of pipeline data.In view of the problems of weak correlation and low utilization rate of pipeline data,based on the most complete long-period multi-source monitoring data of buried pipelines in permafrost regions in China,this paper analyzes and evaluates the risk section of thaw settlement in Moda line,analyzes the variation law and development trend of pipeline mechanical state and soil temperature field in the risk section of thaw settlement from time scale and space scale,finds out the most dangerous monitoring section,and gives reasonable suggestions for pipeline operation and maintenance.The main conclusions are as follows:it is an effective method to evaluate the safety status of pipelines based on multi-source data;the settlement of the pipeline is affected by the combined effect of atmospheric temperature and soil ice content.The stress value of the pipeline is larger in the area with more ice content in the soil around the pipeline.At present,the whole line is in a safe and controllable state,but it is necessary to track and monitor the change of pipeline state for a long time,and make maintenance and disposal plan in advance.

关 键 词：漠大一线 融沉风险段 多元数据 风险预测 管理措施 

分 类 号：TQ018[化学工程] TE973[石油与天然气工程—石油机械设备]