埋地管道轴向嵌固力对横向位移的影响

由于埋地管道安装铺设时的温度与运行时的温度不同而存在温度不同而存在而存在温差，因此管道受温差和土壤摩阻 的作用而产生轴嵌固力。轴向嵌固力对管道的横向位移有一定程度的影响，但在具体计算时往往被忽略。

Effect of axial build -in force on transversely displacement in buried pipeline

As there is a temperature difference existing between installation and operation temperatures of buried pipeline, the pipeline is liable to generate axial build - in force resulting from temperature difference and soil frictional resistance and -force. Axial build-in force does has a certain effect on pipeline's transversely displacement but it is usually to be neglected in concrete calculation. By deriving balanced differential e-quation of buried pipeline, adopt finite difference method to analyze and calculate the effect of axial build-in force on pipeline transversely displacement. Result shows that the axial build - in force existed makes pipeline's transversely displacement increasing, especially for the pipeline buried in soft foundation, the effect of axial build-in force on pipeline's transversely displacement is more evident. This result will provide theoretical reference for the design of buried pipeline.