地下埋管裂缝原因分析及抗裂验算方法

The Reason Analysis of the Crack of the Underground Embedded Pipe and Calculation Method for the Checking of the Crack Resistance

本文对地下埋管多年运行后产生环向裂缝的原因进行分析,提出了地下埋管轴向抗裂验算方法,对判别已建地下埋管工程是否裂缝提供了理论依据,因此该方法可用于工程设计之中。

The paper analyzes the reason of circumferential crack taking place after the under-ground embedded pipe operated a long time. It proposes the calculation method for checking the circumferential crack resistance of the underground embedded pipe and provides the the-oretic basis for judging the constructed underground embedded pipe if it is cracking. The method may be applied to the design of the engineering.