The swatch values of friction factor of three kinds of precast buried heating pipe and backfilling sand is calculated.
通过对施工变量、运行变量的工程测量及计算得到三种规格的预制直埋供热管道与回填砂的摩擦系数样本值。
Insulation friction in the pipe thermal expansion, well counteract thermal expansion forces can effectively restrict the pipeline along the axial elongation, improved safety Buried heating pipe.
保温层摩擦力在管道受热膨胀时，能很好的抵消热膨胀力，可以有效地限制管道沿轴向伸长，提高了供热直埋管道的安全性。
The working principles and methods of calculation of both compensated and non - compensated heating pipe lines are compared and the advantages of directly buried pipelines are pointed out in this pa…
并对有补偿和无补偿直埋供热管道的基本原理及计算方式进行了比较，介绍了直埋供热管道的优点。
The working principles and methods of calculation of both compensated and non - compensated heating pipe lines are compared and the advantages of directly buried pipelines are pointed out in this pa…
并对有补偿和无补偿直埋供热管道的基本原理及计算方式进行了比较，介绍了直埋供热管道的优点。
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