骨料级配对配重混凝土密度及抗压强度影响的试验研究
Development of Full-scale Fatigue Test Machine for Marine Pipeline
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- DOI:
- 作者:
- 谢洪雷, 赵建佩, 钱欣, 耿丽萍, 张桂基, 魏伟荣, 孙奇伟
XIE Hong-lei
- 作者单位:
- 中海石油(中国)有限公司南海深水天然气开发项目组 广东深圳 518067
CNOOC South China Sea Deepwater Gas Development PMT, Shenzhen 518067, China
- 关键词:
- 海底管道;配重混凝土;骨料级配;抗压强度;密度
marine pipeline;fatigue life assessment;full-scale fatigue test machine;development
- 摘要:
- 骨料级配不仅影响海底管道配重混凝土的强度，而且对其耐久性等也有显著的影响。Füller等式和Bolomey等式是非常著名的固体颗粒理想级配分布公式，以上述公式为依据，设计了不同水泥用量、不同骨料级配的混凝土试验，以考察骨料级配对配重混凝土密度和抗压强度的影响。试验结果表明：Füller公式适用于配重混凝土配合比设计；混凝土密实度不够时，密实度是混凝土密度的决定因素，反之骨料密度是决定因素；混凝土抗压强度随着粗骨料的增加而增大，达到最大值后，又逐渐下降。
Small-scale test pieces are commonly used for assessing fatigue lives of marine pipelines,but full-scale fatigue test can reflect more actual state of crack extension in pipeline,including size effect,residual stress,etc.This paper introduces the first full-scale fatigue test machine for marine pipeline in China devel oped by CNPC Research Institute of Engineering Technology,including system composition,main func tions,mechanical and hydraulic system design,control system development,etc.The host framework design and strength calculation,the main technical parameters,the working principle and characteristics of the test machine are highlighted in the paper.2013,3(3): 13-17 收稿日期：2012-11-12DOI：10.3969/j.issn.1001-2206.2013.03.004作者简介：谢洪雷(1980-)，男，河北沦州人，助理工程师，2004年毕业于承德石油高等专科学校，现从事于海洋石油管道的制造和安装工作。参考文献：
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