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本文详细介绍了无补偿电预热安装技术,并结合工程实例,着重介绍了覆土电预热安装在管沟不允许长时间敞口条件下的应用,具体分析了覆土电预热管道伸长量的计算方法,阐述了一次性补偿器间距的设计方法。
This paper introduces the technology of uncompensated electric preheating installation in detail, and emphatically introduces the application of electric preheating of trenching to the condition that the trench is not allowed to be exposed for a long time. The concrete preheating pipe extension The calculation method, expounds the design method of one-time compensator spacing.