Model Tests on the Adhesion Factor of Full-Scale Polyethylene-Coated Pipes in Soft and Very Soft Clays
作者: Jianhua WangZhaohuan YangYangrui ZhouMingming Dong
作者单位: 1Geotechnical Engineering Institute of Tianjin Univ.
2China Oilfield Services Limited
刊名: Journal of Pipeline Systems Engineering and Practice, 2020, Vol.11 (3)
来源数据库: The American Society of Civil Engineers Journal
DOI: 10.1061/(ASCE)PS.1949-1204.0000461
关键词: Adhesion factorPipe–soil interactionModel testSoft claySubsea pipeline
原始语种摘要: AbstractIn subsea pipeline engineering practice, the total stress or alpha approach, which assumes that the axial resistance to pipeline walking in fine-grained soils such as soft and very soft clays for a specified type of coated pipe varies primarily with the undrained shear strength of the material and contact area, has been increasingly applied in axial stability analyses. The adhesion factor between the subsea pipeline and soil is an important design parameter in the total stress approach. In this paper, a series of axial pipe–soil interaction model tests were conducted to study the effects of the buried depth of a polyethylene (PE)-coated pipe, the undrained shear strength of clays, the pipe diameter, the loading rate, and the setup period on the adhesion factor using full-scale...
全文获取路径: ASCE 

  • factor 因素
  • pipeline 管路
  • adhesion 粘附
  • undrained 未排水的
  • coated 涂渍的
  • axial 轴的
  • pipes 管子
  • resistance 抵抗
  • diameter 直径
  • material 充填料