油气管道寒区小断面隧道保温设计.pdf

2017 年9 月　第36 卷第9 期 设计与施工 Design Construction 1000-8241 2017 09-1065-06 文章编号： （ ） 油气管道寒区小断面隧道保温设计 刘佳祥　胡谋鹏　陈周　苏卫峰　詹胜文 中国石油管道局工程有限公司设计分公司 摘要：为解决季节性冻土隧道冻害现象影响隧道结构和运营安全的问题，结合寒区的气象和油气管 道隧道内常年恒温、洞门常闭、小断面的特点，提出了适用于油气管道寒区小断面隧道保温设计。对 管道和隧道围岩整体温度场进行模拟分析，依据隧道围岩温度及冻融情况，确定了设置保温隔热层 的位置与长度；形成了一种油气管道寒区小断面隧道隔热保温层合理厚度的计算公式；设计了保温 层与保温门联合防冻的方案。保温设计可应用于油气管道寒区小断面山岭隧道，对于大断面管道隧 道也具有一定的指导意义。（图2，参25 ） 关键词：油气管道；寒区隧道；小断面；数值模拟；保温设计 09 014 中图分类号：TE89 　　　　文献标识码：A　　　 doi ： 10.6047/j.issn.1000-8241.2017. . 网络出版时间：2017-3-23 14:46:36 网络出版地址：/kcms/detail/13.1093.TE1446.004.html The thermal insulation design suitable for small-section tunnels of oil and gas pipelines in cold regions LIU Jiaxiang, HU Moupeng, CHEN Zhou, SU Weifeng, ZHAN Shengwen China Petroleum Pipeline Engineering Co. Ltd. (Engineering) Abstract: The tunnels in seasonal frozen soil always suffer freeze injury and their structures and operation safety are often adversely impacted. To solve this problem, the thermal insulation design suitable for small-section tunnels of oil and gas pipelines in cold regions was proposed based on the meteorological characteristics of cold regions and the characteristics inside pipeline tunnels, e.g. perennial constant temperature in tunnel, perennial closed portal and small section. After the whole temperature field covering the pipeline and the rocks around the tunnel was simulated and analyzed, the loca