摘要
中俄输油管线起点为黑龙江省漠河县连崟首站,终点为大庆市林源。管线全长965 km。输油管线系统与周围冻融土体发生水、热、力耦合作用,威胁管道的正常运营。本文依据漠大管道沿线地温资料,采用非线性拟合算法对漠大沿线多年冻土地温进行曲线拟合,提出不同分区的地温曲线拟合预测模型,进而依据地温预测模型对沿线多年冻土地温进行预测。研究结果表明:预测模型的理论地温值与实测值之间误差波动较小,提高了多年冻土地温的预测精度。
The starting point of the Sino-Russian oil pipeline is Lianzhen First Station in Mohe County of Heilongjiang Province,and the end point is Linyuan in Daqing City.The total length of the pipeline is 965km.The coupling effect of water,heat and force between the oil pipeline system and the surrounding frozen-thawed soil body threatens the normal operation of the pipeline.In this paper,based on the ground temperature data along the Moda pipeline,a nonlinear fitting algorithm is used to curve fit the permafrost temperature along the Moda pipeline,and different regions of the ground temperature curve fitting prediction models are proposed,and then the ground temperature of permafrost along the pipeline is predicted according to the prediction model.The results of research show that the fluctuation between the theoretical ground temperature value and the measured value of the prediction model is small,and it improves the prediction accuracy for the permafrost temperature.
作者
金明山
柳艳杰
丁琳
黄帅
刘新月
JIN Mingshan;LIU Yanjie;DING Lin;HUANG Shuai;LIU Xinyue(Heilongjiang Nongken Modern Agricultural Engineering Design Co.Ltd.,Harbin 150090,China;School of Civil Engineering,Heilongjiang University,Harbin 150080,China;Heilongjiang Province Village and Town Drinking Water Safety Engineering Technology Research Center,Heilongjiang University,Harbin 150080,China)
出处
《水利科学与寒区工程》
2020年第5期52-56,共5页
Hydro Science And Cold Zone Engineering
基金
冻土工程国家重点实验室开放基金资助项目(SKLFSE201802,SKLFSE201919)
哈尔滨市应用技术研究与开发项目(2017RAXXJ031)
国家级大学生创新创业训练计划项目(201910212003)。
关键词
多年冻土
非线性拟合
地温预测模型
permafrost
nonlinear fitting
permafrost temperature prediction model