冻土地区村镇给水管道保温层厚度数值计算

Numerical Calculation of Insulation Layer Thickness of Rural Water Supply Pipe in Permafrost Regions

我国冻土地区村镇给水管道冬季时常发生冻胀的现象,严重影响供水安全,对农民生产生活造成危害,亟需开展防冻技术研究.本文针对东北地区村镇供水实际情况,提出直埋管道外加保温层的防冻胀技术方法,并通过理论数值计算,确定出常用管材在不同埋深情况下的保温层厚度.

In permafrost regions of China, the rural water treatment devices have problem in safe and reliable operation, especially in winter. The phenomenon of rural water supply pipes frost heave often happens and does great harm to water supply system＇ s reliable operation. Thus, the research of anti - freezing and anti - expansion technolo- gies is necessary for regular production and lives of peasants＇ . In order to solve the problem, this article introduce the anti - freezing technology of straight - buried pipe with insulation layer. Through theoretical analysis and calcu- lation, the insulation layer thickness can be determined.