集气站内收、发球筒与站外埋地管道通过过渡段相连。当埋地管道的操作温度高于安装温度时,埋地管道发生热膨胀可能使地上管道推挤设备、阀门等而造成破坏或过量变形。为此,以某工程集气站内发球筒和埋地管道为研究对象,利用应力分析软件CAESARⅡ分析埋地管道二次应力对发球筒锚固墩的影响。某集气站发球筒管道改造实践表明:设置45°π形补偿结构、将地面支撑改为滑动支撑能有效减缓发球筒位移,确保管道通球作业顺利进行,保证发球筒正常运行,证明改进方案切实可行。 Gathering stations within the collection, delivery and buried pipe station outside the transitional section connected. When the operating temperature of the buried pipeline is higher than the installation temperature, the thermal expansion of the buried pipeline may cause the pipeline on the ground to push equipment, valves, etc. to cause damage or excessive deformation. In this paper, taking the delivery pipe and the buried pipe in a gas gathering station as the research object, the influence of the secondary stress of the buried pipe on the anchor of the delivery pipe is analyzed by the stress analysis software CAESAR Ⅱ. The practice of a gas gathering station teeing pipe reconstruction shows that setting a 45 ° π-shaped compensating structure and changing the ground support to the sliding support can effectively reduce the displacement of the teeing gear, ensure the smooth operation of the pipe balling operation and ensure the normal operation of the teeing gear, and prove that the improvement plan Practicable