埋地排水塑料管道结构计算探讨  

Discussion on Structural Calculation for the Buried Plastic Pipe

作　　者：安关峰[1] 张洪彬[1] 

机构地区：[1]广州市市政集团有限公司,510060

出　　处：《特种结构》2015年第3期118-124,共7页Special Structures

基　　金：国家科技项目:国家科技支撑计划课题(2015BAK11B03)

摘　　要：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 a amount of application of new plastic pipe,severe deformation and crack were often found in the buried plastic pipe.Besides impact of pipe material,the research on structural calculation formula should be made in details.Based on the pipe project case,the calculation of wall strength,ring stability and deformation were made respectively.The conclusions were drawn,such as the comprehensive impact of more roller pressure under traffic load can’t be ignored on the pipr in the certain buried depth of pipe,the wall stress of pipe is directly affected by elastic modulus of backfill soil of pipe side.The conclusions are available for reference.

关 键 词：排水管道 结构计算 环刚度 管壁强度 管环稳定性 

分 类 号：TU992.23[建筑科学—市政工程]