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随着新型塑料管材的大量使用,管道严重变形、破坏时有发生。在分析管道病害原因时,除管材质量外,有必要考究管道结构计算公式。本文依据案例针对埋地塑料管道进行了管壁强度、管环稳定性和变形计算等结构计算,得出管道在埋深范围交通荷载多排轮压综合影响不能忽视,管侧回填土弹性模量直接影响到塑料管壁的应力等有关结论。可供同行借鉴。
With the extensive use of new plastic pipe, pipe serious deformation, destruction often occur. In analyzing the causes of pipeline disease, in addition to pipe quality, it is necessary to study the calculation formula of pipeline structure. According to the case, the calculation of pipe wall strength, pipe ring stability and deformation calculation are carried out according to the case. It is concluded that the combined effect of multi-row and round-trip pressure of traffic load in the buried depth range can not be neglected. The elastic modulus Directly affect the plastic pipe wall stress and other related conclusions. For colleagues to learn from.