摘要
单重保温管较传统的双重管中管结构具有很多优势。铺设单重管最容易出现的问题是由于张紧器张力作用而导致单重管各层之间产生剪切力,如果抗剪能力不足产生相对滑移,就会出现拉脱现象,造成工程事故。以某依托工程采用的单重保温管为例,介绍了各层之间抗剪能力的室内全比尺试验方法,给出的试验结果可供设计参考。
It has been proved that the thermally insulated ocean pipeline has advantages over the conventional pipe-in-pipe pipeline. The risk of using the thermally insulated pipeline is that the exterior layers covering the steel pipe may be pulled off if the shear stress on the interface induced by the pullout force from the tensioner is greater than the binding force between two neighboring layers during installation. This paper introduces the methods for performing full-scale laboratory tests on the interface shear resistance in the thermally insulated ocean pipelines for a certain project, and the test results are also presented for the designers to refer to.
出处
《海洋工程》
CSCD
北大核心
2006年第2期107-111,共5页
The Ocean Engineering
关键词
单重保温海底管线
层间剪力
全比尺试验
thermally insulated ocean pipelines
interface shear resistance
full-scale laboratory test
