高温水直埋保温管道覆土后预热的应力计算

Preheating Stress Calculation of High-temperature Water Directly Buried Insulating Pipeline after Be Covered in Soil

论述了热水直埋预制保温管道覆土后预热安装的管道应力计算方法。在设计和应用过程中需要注意的关键问题是保证管道接口处和一次性补偿器处的应力满足规范要求,确保管道的运行安全和使用寿命。

The stress calculation method of preheating installation pipeline after the hot water directly buried prefabricated insulating pipeline is covered in soil is discussed. The key issue needing attention during design and application is to ensure the stress at the pipeline joints and the disposable expansion joints to meet the code requirement and to insure the pipeline operation safety and service life.