寒区低压输水灌溉管道环刚度试验及选择

Ring stiffness experimental investigations and analysis of low pressure irrigation pipeline in cold region

本文对水利部科技推广中心"水利部竹基缠绕复合管示范工程"中的竹纤维缠绕复合压力管进行了标准环境和低温环境下的环刚度试验,并通过外荷载作用下竖向变形验算,复核实际服役条件下竹复管环刚度是否满足竖向变形要求。结果表明,如果示范工程在施工中选用正确的施工方法,保证埋设情况达到设计要求,竹复管的变形能力能抵抗外荷载的作用,满足竖向变形要求。

The ring stiffness of bamboo-based composites pipe was studied under the standard environment and low temperature environment in this paper, which was used in demonstration project of Ministry of Water Resources. Checking whether the ring stiffness of bamboo-based composites pipe to meet the requirements of vertical deformation in actual service condition through the vertical deformation calculation. The deformation calculation results show that if we choose the right construction methods in the construction to ensure the construction quality to meet the design requirements, the deformation coordination of bamboo-based composites pipe can resist external loads.