海底管道混凝土配重层断裂原因分析及整改措施
Cause Analysis of Rupture at Concrete Weighted Coating Layer of Submarine Pipeline and Countermeasure
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- DOI:
- 作者:
- 杜中强, 李昱坤, 刘迟, 宋寰
DU Zhong-qiang, LI Yi-kun, LIU Chi, SONG Chen
- 作者单位:
- 中国石油天然气集团公司管材研究所, 陕西西安 710065
CNPC Tubular Goods Research Center, Xi'an 710065, China
- 关键词:
- 海底管道;混凝土配重层;断裂;原因分析
submarine pipeline;concrete weighted coating;rupture;cause analysis
- 摘要:
- 针对海底输气管道铺设施工中出现混凝土配重层断裂问题,从混凝土的配比及强度、配重层与PE层的剪切力、钢丝网搭接宽度及强度、铺管设备及工艺等方面进行分析,认为铺管过程中没有使用托管架是造成混凝土配重层断裂的主要原因。并从配重管的涂敷质量、铺管工艺方面提出了整改措施。
Aimed at the rupture problem of concrete weighted coating layer of a submarine pipeline,the analyses on the mix proportion and strength of concrete, the shearing force between CWC layer and PE layer, the overlapped width and the strength of wire-net, as well as equipment and process of pipe laying are carried out. The main cause of the rupture on CWC layer is considered to be no using stinger. The improvement measures are presented with respect to coating quality and laying process of CWC pipes.2006,1(1): 40-41 收稿日期：2005-5-20分类号：TE973.92作者简介：杜中强(1974-),男,山东昌乐人,1999年毕业于西北大学,工程师,主要从事油气输送管道的技术服务及驻厂监理工作.参考文献：
[1]ASTM-A82,Standard Specification for Steel Wire,Plain,for Concrete Reinforcement[S].
[2]ASTM-A185,Standard Specification for Steel Welded Wire Reinforcement,Plain,for Concrete[S].
[3]ASTM-C 150,Standard Specification for Portland Cement[S].
[4]梅孝恒,刘日柱.用铺管船法铺设海底管道施工技术[J].中国海洋平台,1994,增刊1:409-416.